Wednesday, May 1, 2019

It was claimed that the ability to recall personal past events is uniquely human; but great apes can remember specific events for long periods of time (months to years); the forgetting curve is similar to ours

Long-Term Memory of Past Events in Great Apes. Amy Lewis, Dorthe Berntsen, Josep Call. Current Directions in Psychological Science, January 2, 2019. https://doi.org/10.1177/0963721418812781

Abstract: It has been claimed that the ability to recall personal past events is uniquely human. We review recent evidence that great apes can remember specific events for long periods of time, spanning months and even years, and that such memories can be enhanced by distinctiveness (irrespective of reinforcement) and follow a forgetting curve similar to that in humans. Moreover, recall is enhanced when apes are presented with features that are diagnostic of the event, consistent with notions of encoding specificity and cue overload in human memory. These findings are also consistent with the involuntary retrieval of past events in humans, a mode of remembering that is thought to be less cognitively demanding than voluntary retrieval. Taken together, these findings reveal further similarities between the way humans and animals remember past events and open new avenues of research on long-term memory in nonhuman animals.

Keywords: great apes, long-term memory, spontaneous retrieval, episodic memory, event memory

Why so many people trust others, even complete strangers, given their social cynicism & aversion to taking risks? People trust at unexpectedly high rates because they feel a social obligation to do so

Why People Trust: Solved Puzzles and Open Mysteries. David Dunning, Detlef Fetchenhauer, Thomas Schlösser. Current Directions in Psychological Science, April 30, 2019. https://doi.org/10.1177/0963721419838255

Abstract: Interpersonal trust is essential for a productive and rewarding social life, yet it presents many theoretical puzzles, particularly among strangers, because its existence violates the rational-actor model. Here, we focus on two mysteries. One is cognitive, focusing on why people cynically underestimate how trustworthy their peers are. The second is behavioral, focusing on why so many people trust others, including complete strangers, given their social cynicism and aversion to taking risks. Regarding the behavioral mystery, we adopt a normative approach, proposing that people trust at unexpectedly high rates because they feel a social obligation to do so. This approach implies that trust may be more about the behavior itself than about downstream consequences, that people are not “giving” so much as “giving in” to social pressures, and that their choices may have more to do with emotion than calculation.

Keywords: trust, economic games, prosocial behavior, norms, social exchange

Drinking alcohol (compared with placebo or control) increased the positive image held by observers

Self-Expression While Drinking Alcohol: Alcohol Influences Personality Expression During First Impressions. Edward Orehek et al. Personality and Social Psychology Bulletin, April 30, 2019. https://doi.org/10.1177/0146167219843933

Abstract: People are motivated to be perceived both positively and accurately and, therefore, approach social settings and adopt means that allow them to reach these goals. We investigated whether alcohol consumption helps or hinders the positivity and accuracy of social impressions using a thin-slicing paradigm to better understand the effects of alcohol in social settings and the influence of alcohol on self-expression. These possibilities were tested in a sample of 720 participants randomly assigned to consume an alcohol, placebo, or control beverage while engaged in conversation in three-person groups. We found support for the hypothesis that alcohol (compared with placebo or control) increased the positivity of observers’ personality expression, but did not find support for the hypothesis that alcohol increased the accuracy of personality expression. These findings contribute to our understanding of the social consequences of alcohol consumption, shedding new light on the interpersonal benefits that alcohol can foster.

The “Inclusivity Analysis” feature allows filmmakers “to quickly assign and measure the ethnicity, gender, age, disability or any other definable trait of the characters,” or determine if they pass the Bechdel Test

Screenplay Software Adds Tool to Assess a Script’s Inclusiveness. Melena Ryzik. TNYT Apr 26 2019. https://www.nytimes.com/2019/04/26/movies/final-draft-software.html

One of the most widely used screenplay programs in Hollywood has a new tool to help with gender equality and inclusion. In an update announced Thursday, Final Draft (https://www.finaldraft.com) — software that writers use to format scripts — said it will now include a proprietary “Inclusivity Analysis” feature, allowing filmmakers “to quickly assign and measure the ethnicity, gender, age, disability or any other definable trait of the characters,” including race, the company said in a statement.

It also will enable users to determine if a project passes the Bechdel Test, measuring whether two female characters speak to each other about anything other than a man. The Final Draft tool, a free add-on, was developed in collaboration with the Geena Davis Institute on Gender in Media at Mount Saint Mary’s University, which has been at the forefront of studying the under-representation of women on screen.

From 2018: These results support the existence of characteristic neural traits in artists, who display reduced reactions to monetary reward acceptance and increased reactions to monetary reward rejection

From 2018...  Reactivity of the Reward System in Artists During Acceptance and Rejection of Monetary Rewards. Roberto Goya-Maldonado, Maria Keil, Katja Brodmann & Oliver Gruber. Creativity Research Journal, Volume 30, 2018 - Issue 2, Pages 172-178. Apr 20 2018. https://doi.org/10.1080/10400419.2018.1414994

Abstract: Humans possess an invaluable ability of self-expression that extends into visual, literary, musical, and many other fields of creation. More than any other profession, artists are in close contact with this subdomain of creativity. Probably one of the most intriguing aspects of creativity is its negative correlation with the availability of monetary reward. The aim of this study was to investigate the reactivity of the dopaminergic reward system in artists and nonartist controls using the desire-reason-dilemma (DRD) paradigm, which allows separate evaluation of reactivity to the acceptance and rejection of rewards. Using fMRI, blood-oxygen-level-dependent (BOLD) responses were measured in key regions of the reward system, namely the ventral striatum (VS), the ventral tegmental area (VTA), and the anterior ventral prefrontal cortex (AVPFC). In contrast to controls, artists presented significantly weaker VS activation in reward acceptance. Additionally, they showed stronger suppression of the VS by the AVPFC in reward rejection. No other differences in demographic or behavioral data were evidenced. These results support the existence of characteristic neural traits in artists, who display reduced reactions to monetary reward acceptance and increased reactions to monetary reward rejection.

Chronotype (morningness/eveningness) is associated with preference for the timing of many types of behavior, most notably sleep; also associated with aspects of personality, like prosocial behavior

The impact of chronotype on prosocial behavior. Natalie L. Solomon, Jamie M. Zeitzer. PLOS, April 30, 2019. https://doi.org/10.1371/journal.pone.0216309

Abstract
Introduction: Chronotype (morningness/eveningness) is associated with preference for the timing of many types of behavior, most notably sleep. Chronotype is also associated with differences in the timing of various physiologic events as well as aspects of personality. One aspect linked to personality, prosocial behavior, has not been studied before in the context of chronotype. There are many variables contributing to who, when, and why one human might help another and some of these factors appear fixed, while some change over time or with the environment. It was our intent to examine prosocial behavior in the context of chronotype and environment.

Methods: Randomly selected adults (N = 100, ages 18–72) were approached in a public space and asked to participate in a study. If the participants consented (n = 81), they completed the reduced Morning-Eveningness Questionnaire and the Stanford Sleepiness Scale, then prosocial behavior was assessed.

Results/Conclusions: We found that people exhibited greater prosocial behavior when they were studied further from their preferred time of day. This did not appear to be associated with subjective sleepiness or other environmental variables, such as ambient illumination. This suggests the importance of appreciating the differentiation between the same individual’s prosocial behavior at different times of day. Future studies should aim at replicating this result in larger samples and across other measures of prosocial behavior.

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Introduction

Individual differences in the time at which people prefer to do particular behaviors, most notably sleep, are referred to as chronotype. In essence, chronotype describes whether someone is a “morning” person or an “evening” person. While many (50%) individuals identify somewhere between the extremes of chronotype, around 30% of individuals identify as morning type and 20% identify as evening type [1,2]. An individual’s chronotype is likely created by an interaction between the endogenous circadian pacemaker and its responses to light [3,4] and can be modulated by factors such as age [2,5,6] and life circumstance (e.g., needing to get to work early over years may shift preference towards earlier hours). There are a variety of physiologic events that vary by chronotype (e.g., timing of melatonin [7], core temperature [8], and cortisol [9]), as well behaviors that vary by chronotype (e.g., cognition, mood, susceptibility to stress and personality traits) [10,11]. A meta-analysis examining the association between chronotype and personality, as described by the Big Five Personality Model [12], found that conscientiousness is the personality dimension that relates most to morningness. Agreeableness is also related to morningness, although to a lesser degree, and openness to experience, extraversion and neuroticism, contribute a very small degree [12].
Another variable linked to both agreeableness and conscientiousness, prosocial behavior, has received little attention in terms of its potential modulation by chronotype. Prosocial behavior, or an action that is done for the benefit of another human or society as a whole, is regulated by both situational and dispositional variables [13]. The study of situational determinants of prosocial behavior was the focus of most early investigation. Among the situational variables that could influence prosocial behavior are setting (rural settings eliciting more prosocial behavior than urban settings) [14,15], other behaviors (e.g., cell phone use) [16], amount of sunlight [17], and weather [18]. Noise has also been found to be negatively correlated with prosocial behavior, with high noise levels interfering more with verbal help than with physical help [19]. Opportunities in which the situation is viewed as uncontrollable, such as a medical emergency, are likely to evoke more prosocial behavior [20], while the presence of bystanders reduces prosocial behavior [21]. More recently, however, there has been increasing interest in examining how dispositional (trait) variables relate to prosocial behavior. Agreeableness and conscientiousness are the personality traits most correlated with prosocial behavior [2224]. Other variables associated with prosocial behavior include sex [25] and age [26,27].
As both chronotype and prosocial behavior are linked to agreeableness, conscientiousness, and other aspects of personality, we wanted to explore whether chronotype is linked to prosocial behavior. One previous study examining adolescents found morningness to be correlated positively with prosocial behavior, and negatively with behavioral problems [28]. We specifically hypothesized that individuals would be more likely to engage in prosocial behavior if asked to do so when closer to their preferred time of day. We secondarily hypothesized that sleepiness, a common occurrence in many adults that can be associated with chronotype [29] and impacts many aspects personality [30], would be negatively associated with prosocial behavior.

Materials and methods

Participants (N = 100) were approached at the Mountain View Caltrain Station in Mountain View, California. This location was chosen because many people waiting at the station may have some extra time and may not be immediately headed somewhere. Participants were approached when a train was not scheduled to depart from the platform within the next eight minutes. The same researcher (NS) approached all individuals. The researcher approached every third person on the platform to reduce the likelihood that the researcher was biasing their choice of participant. If the next participant was within earshot of the last participant, the researcher would move on to the next person on the platform who was out of earshot of the last participant.
To control for the effects of socializing and peer influence, only individuals standing alone were sampled. Individuals with others standing nearby were approached while individuals clearly traveling with another were not. Children (individuals who appeared to be less than 17 years old), people on crutches, people with heavy packages or others who might not be fully capable of filling out the questionnaires were excluded.
[...]
When the participant finished the survey, the researcher thanked them and employed a sidewalk interview method [14,18,31,32] by saying the following script, which was adapted from the sociology department of the University of Minnesota [18]: “We are also conducting a second study related to sleep. Although the survey is 80 questions long, you do not have to answer all of the questions. How many questions would you be willing to answer to help me?” [...]

Tuesday, April 30, 2019

Distrust of nonreligious individuals is almost completely erased by knowledge that they are following a restricted monogamous lifestyle; thus, reproductive strategies often underlie apparently sacred concerns

Is Nothing Sacred? Religion, Sex, and Reproductive Strategies. Jordan W. Moon et al. Current Directions in Psychological Science, April 29, 2019. https://doi.org/10.1177/0963721419838242

Abstract: Religion has often been conceptualized as a collection of beliefs, practices, and proscriptions that lift people’s thoughts and behaviors out of the metaphorical gutter of sex and selfishness toward lives full of meaning, contemplation, and community service. But religious beliefs and behaviors may serve selfish, sexual motivations in ways that are not always obvious or consciously intended. We review two lines of research illustrating nonobvious links between the mundane and the religious. First, contrary to long-held assumptions that religious upbringing causes sexually restrictive attitudes and behaviors, several large data sets now suggest a reverse causal arrow—people’s preferred mating strategies determining their attraction toward, or repulsion from, religion. Second, other recent findings suggest that distrust of nonreligious individuals is almost completely erased by knowledge that they are following a restricted monogamous lifestyle. Thus, reproductive strategies often underlie apparently sacred concerns. We close with a consideration of ways in which reproductive interests might underlie a broad range of benefits associated with religious affiliation.

Keywords: religion, evolutionary psychology, mating

Thought-Control Failure: Sensory Mechanisms and Individual Differences

Measuring Thought-Control Failure: Sensory Mechanisms and Individual Differences. Eugene L. Kwok et al. Psychological Science, April 22, 2019. https://doi.org/10.1177/0956797619837204

Abstract: The ability to control one’s thoughts is crucial for attention, focus, ideation, and mental well-being. Although there is a long history of research into thought control, the inherent subjectivity of thoughts has made objective examination, and thus mechanistic understanding, difficult. Here, we report a novel method to objectively investigate thought-control success and failure by measuring the sensory strength of visual thoughts using binocular rivalry, a perceptual illusion. Across five experiments (N = 67), we found that thought-control failure may occur because of the involuntary and antithetical formation of nonreportable sensory representations during attempts at thought suppression but not during thought substitution. Notably, thought control was worse in individuals with high levels of anxiety and schizotypy but more successful in mindful individuals. Overall, our study offers insight into the underlying mechanisms of thought control and suggests that individual differences play an important role in the ability to control thoughts.

Keywords: thought suppression, thought substitution, binocular rivalry, mental imagery, mindfulness, open data


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The ability to control our own thoughts, is an important mental capacity and is important for attention, focus, future planning and ideation [1-4]. Given that up to 80% of the general population experience some form of unwanted intrusive thoughts [5], the ability to control thoughts is also an important determinant of mental wellbeing [6]. Indeed, failure to control thoughts has been linked to various mental disorders including anxiety[7, 8], obsessive-compulsive disorder (OCD) [9, 10] and schizophrenia [11, 12].

Since the work of Freud, the idea of voluntarily repressing a thought, thought suppression, has become an active phrase in the general populace and has attracted muchattention, despite the lack of any clear objective methodology to investigate the phenomenon. Attempting to control thoughts by direct thought suppression (not thinking about a given thought) is often difficult and subjective reports suggest suppression mostly fails [6]. Instead of directly eliminating thoughts from the mind, reports suggest suppression paradoxically leads to heightened preoccupations with these thoughts [13]. For example, individuals instructed to suppress the thought of a white bear are often unable to do so and report intrusions of the thought inadvertently arising a short time later [14]. Research into thought suppression failure (e.g. [15-20]) and its consequences have been studied in a wide variety of domains including organisational behaviour [21], smoking addiction [22], immune function [23] and psychopathology [24-27]. However, largely due to the inherent private subjectivity of thought suppression, its existence as a possible process, dynamics, where and why such suppression failures originate, remains largely unknown. While thought suppression is the most commonly studied thought control strategy, other forms of thought control have been examined and seem to be more effective. For example, thought substitution, in which a suppressed thought is instead replaced by a substitute thought, has shown evidence for reduced thought intrusion frequency and thought control failure [6, 14, 28]. More recently, mindfulness has shown evidence as an effective form of mental control [29].

While these forms of thought control seem more effective than direct thought suppression, without a mechanistic understanding of these processes, research into why one method might work over another, and indeed if there are potentially more effective methods remains limited.

Wegner [13] first attributed the inability to control thoughts using thought suppression to the interaction between two practical, but simultaneously conflicting, mental processes. The first involves a conscious process that attempts to achieve a state of mind free from the to-be-suppressed thought. The second is an unconscious monitoring process that checks for unwanted instances of the to-be-suppressed thought. Wegner proposed thoughts unwillingly enter consciousness due to the ironic opposition between these two processes, ultimately leading to thought control failure. Neuroimaging evidence has generally supported this view [30-32]. However, while mechanisms have been proposed, the empirical investigation and objective measurement of thought control has been limited.

The inherent subjectivity of thoughts has further made the objective examination of thought control difficult. For the most part, previous research has used subjective self-reports to examine thought control ( e.g. [14, 28, 33, 34]). While self-report measures have provided valuable insight into the examination of thought control, these measures may be prone to bias, experimenter demand or social desirability effects [35], and thus make it difficult to examine the underlying mechanisms.

To overcome this subjectivity and to shed light on the underlying mechanisms of thought control and its failure we devised a novel method to objectively study the control of visual thoughts using the illusion binocular rivalry. Binocular rivalry is a visual illusion that arises when two different images are presented one to each eye, inducing bistable perceptual alternations between the two images [36]. Binocular rivalry has been used to objectively measure the sensory strength of mental images [37-40] and prior perceptual stimuli [37, 39, 41]. Here we devised a novel method to utilise a brief binocular rivalry presentation to objectively assess visual representations that might emerge during attempts at thought control.

In each trial, we instructed participants to either imagine, suppress or substitute the thought of a red or green coloured object, before being presented with a brief red-green binocular rivalry stimulus. Any priming for imagined, suppressed or substituted thoughts could then be calculated to provide an objective measure of the sensory strength of these visual thought representations. To probe subjective metacognition of thought control, we instructed participants to report when thought control failed and compared these subjective reports to their level of rivalry priming. Lastly, a Thought Control Index was devised to investigate the relationship between thought control and four psychological traits: anxiety, obsessive-compulsive tendencies, schizotypy and mindfulness.

Results showed suppressed thoughts led to binocular rivalry priming significantly above chance (50%) and almost as strong as priming for intentionally imagined thoughts, indicating a failure to control the sensory trace of thoughts using thought suppression. Surprisingly, priming for trials reported as successfully suppressed was still significantly above chance, suggesting the possibility of emergent non-conscious sensory representations during attempts at thought control. Thought substitution was more, although not completely effective, in controlling the sensory trace of visual thoughts. Individuals with high trait mindfulness exhibited greater levels of thought control, whilethose with high anxiety or schizotypy traits exhibited lower levels of thought control. Interestingly, there was no relationship with obsessive-compulsive tendencies. Our data suggest that thought control failure is linked to the formation of sensory representations during attempts at thought control.

In Indonesia: Cognitive dissonance in women who are addicted to pornography

In Indonesia: Cognitive dissonance in women who are addicted to pornography. Rendy Alfiannoor Achmad, Ayunia Firdayati. Jurnal Ecopsy, Vol 6, No 1 (2019). http://dx.doi.org/10.20527/ecopsy.v6i1.6028

Abstract: Based on a Google Trends survey, Indonesia is ranked as the world's top 10 consuming pornographic material for the types of keywords that are related to sex, and an average of 20% of all categories are conducted by student-aged adolescents. This study aims to describe how cognitive dissonance is experienced by women who are addicted to pornography. The method used in this study is a qualitative method with a case study approach. Data was collected by observation and interview, the subject of the study was a woman who had been exposed to pornography since sitting in elementary school. The results of the study explained that the source of the occurrence of cognitive dissonance of the subject was due to a discrepancy between the subject's beliefs and assessment of the new environment towards the subject's habit of watching pornographic videos. Cognitive dissonance experienced by women who are addicted to pornography is the emergence of feelings of anxiety, feelings of guilt, sin, feelings of fear are considered 'disgusting', and also feel their behavior is only a waste of time.

Keywords: Sex; Pornography; Women

Polygamous marriages: Women assigned greater sentence durations & perceived the transgressions toward the institution of marriage as more severe than men; the presence of children increased the troublesomeness of the polygamy

Widman, D. R., Philip, M. M., & Geher, G. (2018). Punishment of hypothetical polygamous marriages. Evolutionary Behavioral Sciences, http://dx.doi.org/10.1037/ebs0000155

Abstract: Parental investment theory suggests that differential reproductive investment has led the sexes to different mating strategies. In humans, men have the lesser investment and therefore tend to desire greater numbers of mates relative to women. One result of this could be that men would be more tolerant of polygamous marriages. The present study examined this hypothesis. Participants read 4 hypothetical vignettes describing individuals who were convicted of polygamy. The vignettes varied in the sex of the perpetrator and whether the marriage resulted in children or not. Participants were asked to suggest a sentence duration and to assess the severity of that sentence, as well as the severity of the transgression to the spouses, the institution of marriage, and in general. Participants also completed several scales relevant to reproduction. The results indicated that women assigned greater sentence durations and perceived the transgressions toward the institution of marriage and in general as more severe than men. In addition, the presence of children increased the troublesomeness of the polygamy. Finally, life history and the troublesomeness of the polygamy were positively correlated, but only in men. This is consistent with the male strategy of dads with slow life histories and cads with fast life histories. The lack of correlation in women may be an indication of smaller variation in reproduction relative to men, regardless of life history.


Individuals who claim knowledge/expertise where they have little experience or skill exhibit high levels of overconfidence, believe they work hard, persevere at tasks, & are popular

Bullshitters. Who Are They and What Do We Known about Their Lives? John Jerrim, Phil Parke, rNikki Shure. IZA DP No. 12282. http://ftp.iza.org/dp12282.pdf

‘Bullshitters’ are individuals who claim knowledge or expertise in an area where they actually have little experience or skill. Despite this being a well-known and widespread social phenomenon, relatively few large-scale empirical studies have been conducted into this issue. This paper attempts to fill this gap in the literature by examining teenagers’ propensity to claim expertise in three mathematics constructs that do not really exist. Using Programme for International Student Assessment (PISA) data from nine Anglophone countries and over 40,000 young people, we find substantial differences in young people’s tendency to bullshit across countries, genders and socio-economic groups. Bullshitters are also found to exhibit high levels of overconfidence and believe they work hard, persevere at tasks, and are popular amongst their peers. Together this provides important new insight into who bullshitters are and the type of survey responses that they provide.


Coupled gay men did more physical activity than coupled straight men and were 1.62x more likely to be active, 1.67x more likely to be high active, 1.89x more likely to engage in muscle-strengthening activities

A Population-Based Study of Coupling and Physical Activity by Sexual Orientation for Men. Joseph S. Lightner, Katie M. Heinrich & Matthew R. Sanderson. Journal of Homosexuality, Apr 25 2019. https://doi.org/10.1080/00918369.2019.1601435

ABSTRACT> Research has suggested that men in relationships are more physically active than men who are single. This study provides a weighted analysis of physical activity by coupling status for men of different sexual orientations. Aggregated data from the United States 2013–2014 National Health Interview Survey were used to conduct multivariate logistic regression analyses. Compared to straight men (n = 29,926), gay men (n = 623) were less likely to be in a relationship (AOR 0.32, CI: 0.25–0.41). Coupled gay men did more physical activity than coupled straight men and were 1.62 (CI: 1.05–2.50) times more likely to be active, 1.67 (CI: 1.10–2.51) times more likely to be high active, 1.89 (CI: 1.24–2.89) times more likely to engage in muscle-strengthening activities, and 2.00 (CI: 1.28–3.11) times more likely to meet aerobic and muscle-strengthening recommendations. Coupling facilitates physical activity for men. However, more research is needed to help explore underlying mechanisms for differences by sexuality.

KEYWORDS: Physical activity, gay men, relationship status, exercise, sexual orientation, health behavior, sexual minority

Are U.S. older adults getting lonelier? No evidence that loneliness is substantially higher among the Baby Boomers or that it has increased over the past decade

Hawkley, L. C., Wroblewski, K., Kaiser, T., Luhmann, M., & Schumm, L. P. Are U.S. older adults getting lonelier?: Age, period, and cohort differences. Psychology and Aging, accepted. https://osf.io/cu8g7

Media portrayals of a loneliness “epidemic” are premised on an increase in the proportion of people living alone and decreases in rates of civic engagement and religious affiliation over recent decades. However, loneliness is a subjective perception that does not correspond perfectly with objective social circumstances. In this study, we examine whether perceived loneliness is greater among the Baby Boomers—individuals born 1948–1965—relative to those born 1920–1947, and whether older adults have become lonelier over the past decade (2005–2016). We use data from the National Social Life, Health and Aging Project (NSHAP) and from the Health and Retirement Study (HRS) collected during 2005–16 to estimate diferences in loneliness associated with age, birth year and survey timepoint. Overall, loneliness decreases with age through the early 70s, after which it increases. We fnd no evidence that loneliness is substantially higher among the Baby Boomers or that it has increased over the past decade. Loneliness is however associated with poor health, living alone or without a spouse/partner and having fewer close family and friends, which together account for the overall increase in loneliness after age 75. Although these data do not support the idea that older adults are becoming lonelier, the actual number of lonely individuals may increase as the Baby Boomers age into their 80s and beyond. Our results suggest that attention to social factors and improving health may help to mitigate this.

Keywords: Loneliness, age-period-cohort efects, Baby Boom cohorts

Cancer-free men who consumed alcohol had a slightly lower risk of lethal prostate cancer compared with abstainers; among men with prostate cancer, red wine was associated with a lower risk of progression to lethal disease

Alcohol Intake and Risk of Lethal Prostate Cancer in the Health Professionals Follow-Up Study. Mary K. Downer et al. DOI: 10.1200/JCO.18.02462 Journal of Clinical Oncology, April 26, 2019

Abstract
PURPOSE: It is unknown whether alcohol intake is associated with the risk of lethal (metastatic or fatal) prostate cancer. We examine (1) whether alcohol intake among men at risk of prostate cancer is associated with diagnosis of lethal prostate cancer and (2) whether intake among men with nonmetastatic prostate cancer is associated with metastasis or death.

METHODS: This prospective cohort study uses the Health Professionals Follow-Up Study (1986 to 2012). Our analysis of alcohol intake among men at risk of prostate cancer included 47,568 cancer-free men. Our analysis of alcohol intake among men with prostate cancer was restricted to 5,182 men diagnosed with nonmetastatic prostate cancer during follow-up. We examine the association of total alcohol, red and white wine, beer, and liquor with lethal prostate cancer and death. Multivariate Cox proportional hazards regression estimated hazard ratios (HRs) and 95% CIs.

RESULTS: Alcohol drinkers had a lower risk of lethal prostate cancer (any v none: HR, 0.84 [95% CI, 0.71 to 0.99]) without a dose-response relationship. Total alcohol intake among patients with prostate cancer was not associated with progression to lethal prostate cancer (any v none: HR, 0.99 [95% CI, 0.57 to 1.72]), whereas moderate red wine intake was associated with a lower risk (any v none: HR, 0.50 [95% CI, 0.29 to 0.86]; P trend = .05). Compared with none, 15 to 30 g/d of total alcohol after prostate cancer diagnosis was associated with a lower risk of death (HR, 0.71 [95% CI, 0.50 to 1.00]), as was red wine (any v none: HR, 0.74 [95% CI, 0.57 to 0.97]; P trend = .007).

CONCLUSION: Cancer-free men who consumed alcohol had a slightly lower risk of lethal prostate cancer compared with abstainers. Among men with prostate cancer, red wine was associated with a lower risk of progression to lethal disease. These observed associations merit additional study but provide assurance that moderate alcohol consumption is safe for patients with prostate cancer.

Monday, April 29, 2019

No direct link between sugary drinks and caloric intake or BMI in children

European Congress on Obesity (ECO) in Glasgow, UK (28 April-1 May), abstract CP2.06: Should the soft drinks industry levy (“the sugar tax”) be framed as a childhood obesity intervention? Anabtawi, O.; Townsend, T.; Strathearn, L.; Swift, J. A. School of Biosciences, Nottingham Univ. https://junkscience.com/wp-content/uploads/2019/04/UK-soda-kids-abstract.pdf

Introduction: The Soft Drinks Industry Levy (SDIL) came into effect on the 6th of April 2018 and it is designed to tackle Sugar Sweetened Beverages (SSBs); the largest contributor of sugar in children’s diets. It has been mandated as part of the Childhood Obesity Plan and is projected to result in an8.55% reduction in the rates of children and adolescents who are obese (Briggs et al., 2016). To understand more about the potential impacts of action on SSBs, this study aimed to consider the characteristics of children in the UK who drink, and do not drink, SSBs and the impact of overall energy intake.

Methodology: Data from 4-day estimated food diaries of 1298 children aged 4-10 years from the National Diet and Nutrition Survey Rolling program from 2008 to 2016 were analysed using SPSS version 24. Based upon their consumption or not, children were categorised as “drinkers”and “non-drinkers” of SSBs. Other variables included child age, gender, weight classification (IOTF cut-offs calculated from weight (kgs) and height (cm) (Cole et al. 2007)), total energy requirements for age, total energy intake (<90% of energy requirement met by intake taken as lower than recommended energy intake, 90-100% as met recommended energy intake, >110% above recommended energy intake), and Non-Milk Extrinsic Sugar (NMES) intake (<5% of total energy requirement as low NMES intake, 5–10% as medium NMES intake, >10% as high NMES intakes) (WHO, 2015).

Results: The consumption of NMES from food and drink within the total population was higher than recommended in 78.4% (n = 1017) children and significantly higher among the 790 (60.86%) of children classified as drinkers of SSBs (67.6%, n = 688) compared to non-drinkers(32.2%, n = 329). However, 78.1% (n = 617) children who were drinkers of SSBs did note xceed their total energy requirements and there was no significant difference between the two groups of drinkers and non-drinkers in terms of age, gender or body weight classification.

Conclusion: In this representative sample of UK children, high intake of NMEs was not directly correlated with high energy consumption, therefore, depending on a single-nutrient approach in tackling childhood obesity might not be the most effective. Furthermore, SSB drinking is not a behaviour particular to children with a higher body weight, on the contrary, framing sugar reduction in tackling obesity might reinforce negative stereotypes around “unhealthy dieting”. More equitably, policies should focus on those children whose consumption of SSBs significantly increases their total NMEs.

Reference: Briggs, A. D. M., et al, (2016) Health impact assessment of the UK soft drinks industry levy: a comparative risk assessment modelling study. The Lancet Public Health, 2, e15–e22.