Cheers to tomorrow? Alcohol use predicts poorer mood and well-being the next day in young adults.

Alcohol use is embedded within university culture. While the consequences of alcohol use on next-day physical health are well-known, less is known about the consequences to next-day emotional health. This study investigated the relationship between alcohol use and next-day mood and well-being using two daily diary studies with New Zealand university students.

Knowledge, attitude and practices of health professionals with regard to plant-based diets in pregnancy: a scoping review.

Objective: This scoping review aimed to systematically map and describe the existing evidence regarding the knowledge, attitudes and practices of health professionals with regard to plant-based diets during pregnancy and to highlight areas for further research.

Design: Following a pre-registered protocol, online databases were searched using a comprehensive search string, in addition to selected grey literature sources, and reference lists of included studies. The studies were independently screened for eligibility by two authors, SM and JM.

Psychological predictors of vaping uptake among non-smokers: A longitudinal investigation of New Zealand adults.

Introduction: Demographic and health factors are known to predict vaping. Less is known about psychological predictors of vaping uptake, particularly among non-smoking adults using longitudinal designs. We aimed to model how psychological factors related to personality and mental health predicted the likelihood of vaping uptake over time in non-smoking adults ages 18+ using longitudinal data.

The role of impulsivity in the relationship between affect and alcohol consumption in young adults.

Background: Theoretical models of alcohol use posit that individuals consume alcohol to ameliorate negative affect or to heighten positive affect. It is important, however, to consider the influence of factors that may determine an individual's tendency to consume excessive amounts of alcohol under positive and negative circumstances. Thus, the current study examined a large sample of young adults to clarify whether positive and negative affect predict total alcohol consumption on drinking days and whether facets of impulsivity moderate these relationships.

Smartphone survey data reveal the timecourse of changes in mood outcomes following vitamin C or kiwifruit intervention in adults with low vitamin C.

Vitamin C-rich foods can improve mood; however, the timecourse of these benefits is unknown. This study utilised intensive longitudinal smartphone surveys from a three-armed placebo-controlled trial to determine mood-related changes following supplementation with vitamin C (250 mg tablet/d), kiwifruit (2 SunGold™ kiwifruit/d) or a placebo (1 tablet/d). Secondary data were analysed from the KiwiC for Vitality trial (Trial ID: ACTRN12617001031358).

Adherence and eating experiences differ between participants following a flexitarian diet including red meat or a vegetarian diet including plant-based meat alternatives: findings from a 10-week randomised dietary intervention trial.

Background: Flexitarian, vegetarian and exclusively plant-based diets are increasingly popular, particularly amongst young adults. This is the first randomised dietary intervention to investigate the health, wellbeing, and behavioural implications of consuming a basal vegetarian diet that additionally includes low-to-moderate amounts of red meat (flexitarian) compared to one containing plant-based meat alternatives (PBMAs, vegetarian) in young adults (ClinicalTrials.gov NCT04869163).

Effects of vaping on uptake and cessation of smoking: Longitudinal analysis in Aotearoa New Zealand adults.

Introduction: Globally, the use of vapes, or e-cigarettes, is increasing. While vaping is less harmful than smoking and may help smokers to quit, there is also the possibility that vaping may lead to smoking. The current study aimed to determine the prevalence of vaping and smoking in Aotearoa New Zealand and explore longitudinal pathways between smoking status and vape use.

University students' opinions towards mobile sensing data collection: A qualitative analysis.

mHealth researchers can now collect a wealth of data using "life tracking apps" (LTAs), which are smartphone applications that use mobile sensing to capture and summarise a multitude of data channels (e.g., location, movement, keyword use, sleep, exercise, and so on).

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Reply to Vorland et al. Mixed Random and Nonrandom Allocation, and Group Randomization Have Been Mislabeled and Misanalysed, Necessitating Reanalysis. Comment on "Conner et al. KiwiC for Vitality: Results of a Randomized Placebo-Controlled Trial Testing the Effects of Kiwifruit or Vitamin C Tablets on Vitality in Adults with Low Vitamin C Levels. 2020, , 2898".

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A combined web based intervention and ecological momentary intervention for reducing alcohol use among incoming first-year university students: Results from a three-arm randomised controlled trial.

Background: The transition from high school to university is associated with increased alcohol use and harm. Web-based interventions (WBIs) and ecological momentary interventions (EMIs) are two methods that have had some success in reducing alcohol use among university students and may be particularly effective if implemented during the transition to university. The aim of the current study was to investigate the effectiveness of a combined WBI and EMI to reduce alcohol use among incoming university students.

Corrigendum: Psychological and Demographic Predictors of Vaping and Vaping Susceptibility in Young Adults.

[This corrects the article DOI: 10.3389/fpsyg.2021.

Methodological and conceptual complexities of assessing relationships between single-occasion CRP inflammation and daily affect.

Inflammation is commonly implicated in sustained levels of depressed mood, chiefly with concurrent measures. There is a dearth of research on understanding how mood-inflammation relationships change on a day-to-day timescale. Determining how inflammation and mood may fluctuate and interact with each other is imperative to determining which pathways may lead to a depressed mood due to inflammation, and, more broadly, which factors induce inflammation in the first place.

Psychological and Demographic Predictors of Vaping and Vaping Susceptibility in Young Adults.

Background: The use of electronic nicotine delivery systems (ENDS), also known as vaping, is becoming popular among young adults. Few studies have explored the psychological factors that predict ENDS use and susceptibility in young adults, in addition to known demographic predictors.

Method: In a cross-sectional survey design, 521 young adults (37% male), ages 18-25 from the United States, were recruited via Amazon's Mechanical Turk (MTurk) in 2019, to answer an online survey measuring demographic characteristics and psychological characteristics related to mental health and the Big Five personality traits.

Daily experiences of hangover severity and food consumption in young adults.

Objectives: Our aim was to determine whether alcohol hangover is associated with eating unhealthy foods (hot chips, soft drink) or healthy foods (fruit, vegetables).

Design: Daily diary study across 13 days (micro-longitudinal design).

Methods: We examined a sample of 605 young adults (71% women; ages 17-25; mean age 19.

Does the Fear of Missing Out Moderate the Relationship Between Social Networking Use and Affect? A Daily Diary Study.

Social networking site (SNS) use is common and speculation about the negative impact of SNS use on mental health and psychological well-being is a recurring theme in scientific debates. The evidence for this link, however, is inconclusive. The Fear of Missing Out (FoMO) may assist in understanding the mixed evidence, as individuals who experience FoMO are more driven to keep up with what is happening to avoid missing out.

A Descriptive Analysis of Transitions from Smoking to Electronic Nicotine Delivery System (ENDS) Use: A Daily Diary Investigation.

Objectives: We aimed to examine patterns in smoking and electronic nicotine delivery system (ENDS) use over an extended period of time (up to 20 weeks) in people who smoked and who had never previously made a successful quit attempt using an ENDS.

Design And Setting: We conducted a longitudinal mixed-methods study in Dunedin, New Zealand, during 2018 and 2019.

Participants: Purposively selected participants ( = 45; age (≥18 years), gender, ethnicities, cigarettes/day) who wished to quit smoking.

Who gives a veg? Relations between personality and Vegetarianism/Veganism.

With rates of vegetarianism and veganism (i.e., veg*nism) rising around the world, a growing body of research has begun to explore psychological characteristics that distinguish vegetarians and vegans from omnivores.

Initial Evidence of Variation by Ethnicity in the Relationship between Vitamin C Status and Mental States in Young Adults.

Higher fruit and vegetable intake has been associated with improved mood, greater vitality, and lower stress. Although the nutrients driving these benefits are not specifically identified, one potentially important micronutrient is vitamin C, an important co-factor for the production of peptide hormones, carnitine and neurotransmitters that are involved in regulation of physical energy and mood. The aim of our study was to investigate the cross-sectional relationship between blood plasma vitamin C status and mood, vitality and perceived stress.

How intoxicated are you? Investigating self and observer intoxication ratings in relation to blood alcohol concentration.

Introduction: The ability to accurately detect alcohol intoxication is an important skill for people who use these substances and for a variety of professions (e.g. policing, responsible service of alcohol).

The Big Three Health Behaviors and Mental Health and Well-Being Among Young Adults: A Cross-Sectional Investigation of Sleep, Exercise, and Diet.

Background: Sleep, physical activity, and diet have been associated with mental health and well-being individually in young adults. However, which of these "big three" health behaviors most strongly predicts mental health and well-being, and their higher-order relationships in predictive models, is less known. This study investigated the differential and higher-order associations between sleep, physical activity, and dietary factors as predictors of mental health and well-being in young adults.

KiwiC for Vitality: Results of a Randomized Placebo-Controlled Trial Testing the Effects of Kiwifruit or Vitamin C Tablets on Vitality in Adults with Low Vitamin C Levels.

Consumption of vitamin C-rich fruits and vegetables has been associated with greater feelings of vitality. However, these associations have rarely been tested in experimental trials. The aim of the current study was to test the effects of eating a vitamin C-rich food (kiwifruit) on subjective vitality and whether effects are driven by vitamin C.

Cognitive performance, mood and satiety following ingestion of beverages imparting different glycaemic responses: a randomised double-blind crossover trial.

Background/objective: The relationship between postprandial glycaemic responses and cognitive performance, mood and satiety are inconsistent. The objective of this study is to compare the effects of different glycaemic responses, induced by beverages with different glycaemic index (GI) (sucrose and isomaltulose), and a non-glycaemic control (sucralose), on cognition, mood and satiety.

Subjects/methods: In this double-blinded, randomised crossover trial, healthy adults (n = 55) received sucrose (GI 65), isomaltulose (GI 32) and sucralose (non-caloric negative control) drinks on separate occasions.

Understanding Fatigue-Related Disability in Rheumatoid Arthritis and Ankylosing Spondylitis: The Importance of Daily Correlates.

Objective: Fatigue is common among people with inflammatory arthritis but is hard to manage. The aim of this study was to investigate how daily fluctuations in psychological variables correspond with changes in fatigue-related disability in the daily lives of people with inflammatory arthritis and to identify factors to target in psychological interventions and routine clinical practice.

Methods: A cohort of 143 patients with rheumatoid arthritis (n = 97) or ankylosing spondylitis (n = 46) participated in a 10-day online diary study.

Acceptance and commitment therapy for people with rheumatic disease: Existing evidence and future directions.

Introduction: Despite advances in the management of rheumatic diseases, many patients experience persistent pain and fatigue. Psychological interventions are useful adjunctive treatments, but improvements tend to be small, and progress in this area is needed. The aim of this review was to evaluate the effectiveness of acceptance and commitment therapy (ACT) for the treatment of chronic pain and fatigue in patients with rheumatic disease.