Research on teenage health, behavior, and development. Covers vaping and smoking, youth mental health, social media, and emergency-care trends.
A national poll finds 1 in 3 parents worry their teen or young adult driver could cause an accident, with most witnessing unsafe driving behaviors. Despite concerns, most parents rate their child's driving as average or better, and relatively few impose consequences for risky behaviors.
A concerning rise in adolescent obesity has been found, with overall rates climbing to 15.9% in 2023. Obesity patterns also reveal a decline in weight-loss attempts, with females more likely to attempt weight loss but fewer adolescents reporting efforts in 2023.
A systematic review of 42 studies reveals a rising trend in self-injury among children and youth in high-income countries, with significant variability across countries. The findings highlight the need for effective, contextually informed prevention strategies to curb this growing concern.
A new study found that AI-generated meal plans for teenagers often underestimate total energy and key nutrient intake, leading to potential health risks. The plans tend to overemphasize protein and fat, while underestimating carbohydrates, which may negatively affect growth and metabolic health.
The study highlights the negative impacts of war on Israeli adolescents' personal safety, equality, and freedom of expression. Despite parents being a trusted source of information, adolescents report feeling less free to express their opinions than their parents think.
A new study found that middle and high school students spend nearly one-third of the school day on their smartphones, with frequent checking linked to weaker attention and impulse control. The study also found that students who checked their phones more frequently showed poorer cognitive control, a key skill for learning and academic s...
A systematic review and meta-analysis found consistent associations between digital media use and risks to child health and development, particularly social media use. The study highlights the need for multifaceted policies and interventions to mitigate potential harms from digital media exposure.
A cross-sectional study found that smartphone use during school hours is associated with reduced cognitive control in youths aged 11-18. The study highlights the need for school-level policies and digital literacy programs to address habitual smartphone-checking behaviors that fragment attention.
The Greaux Healthy initiative, launched by Pennington Biomedical Research Center, aims to prevent and treat childhood obesity in Louisiana. Studies show that childhood obesity is a national healthcare crisis in Louisiana, with over 1 in 3 children living with overweight or obesity.
Research connects adolescent aggression to accelerated aging and higher body mass index by age 30. Early aggression alone does not predict faster aging unless it leads to ongoing relationship problems later in life.
A new study published in the Journal of Adolescence suggests that autonomy is not a single entity, but rather two distinct psychological experiences: autonomy satisfaction and autonomy frustration. These experiences steer adolescents toward markedly different academic and emotional outcomes. The research highlights the importance of re...
A groundbreaking longitudinal study reveals that peer influence is specialized, with best friends primarily shaping internal emotional states and academic behaviors, while popular peers set the standard for public image and social media engagement. The findings suggest that adolescents use different mental calculations to navigate thei...
A systematic review and meta-analysis found a small correlation between daily screen use and later sleep onset in youth. However, short-term fluctuations in screen time had limited effects on sleep duration, efficiency, or quality.
A study found insufficient sleep among US adolescents, with trends suggesting environmental and structural factors are driving the issue, rather than specific behaviors. The findings highlight the need for population-level interventions to address widespread sleep loss.
A pediatric investigation study reveals a two-way association between teen fitness and confidence, highlighting the importance of holistic youth health strategies. The study found that cardiorespiratory fitness, strength, and self-efficacy mutually reinforce each other during adolescence.
The European FAIR GAME consortium aims to create participatory mechanisms that foster digital literacy, strengthen mental wellbeing and embed practices grounded in children's fundamental rights in online gaming environments. The project seeks to bring about cultural and structural change in gaming platform policies and standards.
A new study based on extensive data from Swedish school surveys found that changes in average cannabis use among adolescents are reflected across the entire group. The distribution of cannabis use has remained highly stable over time, with increases or decreases occurring in parallel across all user groups.
A cohort study found that adolescent cannabis use is associated with an increased risk of developing psychiatric disorders, particularly psychotic and bipolar conditions. The study's results inform the development of interventions and policies to prevent or delay adolescent cannabis use.
A large new study published in JAMA Health Forum found that past-year cannabis use during adolescence is associated with a significantly higher risk of incident psychotic, bipolar, depressive, and anxiety disorders. Cannabis use preceded psychiatric diagnoses by an average of 1.7 to 2.3 years.
A new study found that social media use, particularly exposure to muscularity-focused content and body comparisons, is strongly associated with increased intentions to use anabolic-androgenic steroids. Young men who frequently view muscular bodies or advertisements promoting muscle-building supplements also report stronger intentions.
A nationwide study found that adolescents and young adults with prior cervical high-grade squamous intraepithelial lesion (HSIL) are at a higher risk of cardiovascular events and mortality. The study suggests that women with prior HSIL should be more closely monitored for cardiovascular disease and prevention strategies should be imple...
A Finnish study found that verifying adolescents' maximal oxygen uptake requires a brief phase to ensure reliable results. The researchers also discovered that different time averaging strategies can significantly affect the final measurement values, highlighting the need for explicit strategy specification.
A national poll found that nearly half of parents are aware of the risk of sudden cardiac arrest in teens, but only about half know their school has an automated external defibrillator (AED) on site. Parents support CPR and AED training, with four in 10 already trained to use an AED, and nearly nine in 10 willing to receive free training.
A recent study published in Journal of Human Nutrition and Dietetics has identified a link between high sugary drink consumption and anxiety symptoms in adolescents. The research team found consistent associations between energy-dense but nutrient-poor drinks and increased anxiety rates.
The study found increased requests for medication abortion among adolescents in states with gestational bans and parental consent requirements. Young adults also sought more medication abortion services post-Dobbs, with the highest demand in states with restrictive abortion laws.
Research found problematic screen use in early adolescence strongly linked to higher risks of mental health problems, sleep disturbance, and suicidal behaviors. The study emphasizes the importance of reducing addictive features on digital platforms and families taking steps to mitigate its impact.
A new study finds that nearly 1 in 3 teens have received a sext, and almost 1 in 4 have sent one. Sextortion is also common, with nearly half of teens who sent a sext reporting being targeted.
The American Society of Hematology released guidelines for frontline and relapsed/refractory management of acute lymphoblastic leukemia (ALL) in adolescents and young adults (AYAs), outlining optimal approaches to treating high-risk patient populations. The guidelines highlight the need for additional research on immunotherapies and tr...
The study found excess adiposity remained highly prevalent among US youths in 2024, with certain racial and ethnic subgroups affected more. The prevalence of severe obesity was also higher for these subgroups.
A health economic analysis found that school restrictive smartphone policies may reduce staff costs by £94 per pupil, but have minimal impact on pupils' mental wellbeing and quality of life. The study also revealed that school staff spend a significant amount of time administering smartphone policies.
Research highlights increased mortality risks among individuals with autism spectrum disorder, intellectual disability, or cerebral palsy compared to the general population. The study's findings can inform public health strategies to address health disparities and excess mortality associated with developmental disabilities.
Children across the globe exhibit similar cooperative behaviors, such as fairness and trustworthiness, that align with adult norms over age. As children get older, their behavior reflects local norms, but younger children tend to be self-interested.
A new study from Tufts University finds that regular family dinners can help prevent substance use among adolescents with low to moderate levels of adverse childhood experiences. However, for those with severe stressors, more targeted approaches like mental health support are needed.
A cohort study found a disproportionate increase in postpartum depression among women and adolescents in low-socioeconomic status communities following state abortion bans. The legislation disproportionately affects vulnerable populations, highlighting the need for targeted mental health support and policy interventions.
A review of 19 studies suggests healthier diets are associated with fewer depressive symptoms and greater psychological distress in adolescents. Whole-diet patterns and diet quality indices show more consistent associations with favourable mental health outcomes.
A cross-sectional study found that up to half of adolescents in the US were using generative AI apps, while a small subset engaged in heavy use. The study highlights the need for future research on individual differences in GenAI use and its impacts on adolescent development.
A study of 700 teens found that screen time negatively affects sleep quality and beliefs about healthy lifestyles. The researchers suggest reducing screen exposure, increasing social interaction, and promoting alternative activities to promote healthier lifestyles and better sleep.
A new study from UT Arlington reveals that one in four US adolescents experience neighborhood trauma, leading to increased substance use. Cyberbullying is more strongly linked to substance use than traditional school bullying, and team sports participation can also contribute to increased alcohol use.
The UC Irvine School of Medicine has been awarded a $850,000 grant by the California Office of Traffic Safety to broaden the UC Traffic Safety Collaborative Program. The program aims to reduce traffic-related injuries and fatalities in California through education, research, and enforcement.
A cohort study found that stronger family connections during adolescence can lead to improved social connections in adulthood. The study suggests that increasing family connection may help mitigate the effects of adult social disconnection.
Researchers found that an increasing number of preexisting maternal chronic conditions increases the risk of severe neonatal morbidity and mortality. Women with multiple chronic conditions may benefit from preconception counseling, earlier identification of complications, and enhanced newborn supports to optimize outcomes.
A new study demonstrates a health care approach matching treatment intensity to individual risk levels can significantly reduce self-harm and depression among at-risk adolescents and young adults. The randomized clinical trial found significant reductions in self-harm behaviors, improved patient satisfaction, and high follow-up rates.
BrainHealth Week 2026 will explore precision brain health, biosensor technology, and mental resilience, offering actionable strategies for improving daily performance and quality of life. The event brings together industry leaders, scientific community, students, and the community at large to discuss practical roadmap for longevity.
Research from the University of Warwick finds that teenage girls who manage their bodies through constant dieting and exercise face heightened risks of psychological health issues. By age 20, these young women are more likely to experience anxiety and depression, highlighting the need for a broader approach to mental health support.
The updated edition provides a comprehensive overview of major mental health conditions that emerge during adolescence, discussing treatment strategies and prevention methods. The book emphasizes the importance of addressing stigma, promoting evidence-based treatments, and integrating positive youth development into policy agendas.
A large national survey reveals nearly a third of students started drinking before age 13, with higher rates in rural areas and boys. The study highlights the need for targeted prevention strategies addressing early exposure, social contexts, and vulnerable subgroups to curb underage drinking's long-term impact.
A multinational clinical trial found that the long-term HIV treatment regimen is safe and favored by adolescents who received injectable intramuscular antiviral medications cabotegravir and rilpivirine. The study showed continued viral suppression after 48 weeks with no major safety concerns.
Researchers from Kyushu University found that the brain forms new, high-density clusters of synapses on specific segments of dendrites during adolescence, challenging the 'adolescent synaptic pruning' hypothesis. This discovery may offer new hope for understanding the biological basis of schizophrenia and other neurodevelopmental condi...
A cohort study of students in grades 4-12 found that social media use varied by age and sex, with heavy use linked to poorer well-being. The study's findings suggest that abstinence from social media may not always be beneficial for adolescents.
Adolescents bullied or engaging in bullying face lasting mental, physical and social challenges. The study identified socioeconomic disadvantages, race, physical differences, and pre-existing health conditions as risk factors for bullying.
A new study found that higher levels of PFAS in the blood are linked to an increased risk of early onset of metabolic dysfunction-associated steatotic liver disease (MASLD) in adolescents. MASLD affects up to 40% of children with obesity and increases long-term risk for type 2 diabetes, heart disease, and liver cancer.
Researchers found that young people who caught up on sleep on weekends had a 41% lower risk for symptoms of depression than those who didn't. Getting eight to 10 hours of sleep each night is still ideal, but weekend sleep catch-up may be protective.
A study by the University of Washington School of Medicine found that US adolescents spend more than an hour per day using their cellphones during school hours. Social media apps account for the largest share of use. The study's lead author notes that objective smartphone data provides a clearer picture of actual use.
This study found that US youth spent more than an hour using smartphones during school hours, primarily for social media use. Objective findings from a large sample confirm previous self-report studies, highlighting the need for responsible smartphone use among adolescents.
A recent study found that adolescents with overweight or obesity who take glucagonlike peptide-1 receptor agonists (GLP-1RA) have a lower risk of acute asthma exacerbations. This association suggests a potential dual benefit, where GLP-1RA use could address both weight management and asthma prevention in this population.
A large national study found that even occasional cannabis use among teens can lead to worse school performance and emotional distress. The more frequently teens used cannabis, the greater the risk of these problems. Experts recommend frank conversations with teens about cannabis risks.
A population-based cohort study found that virtual sick visits to primary care were associated with a small increase in emergency department use in children aged 3 months or older. The study suggests judicious use of virtual primary care to manage acute illness in children is warranted.
A special issue of Child and Adolescent Psychiatric Clinics of North America seeks to transform how clinicians, educators, and policymakers think about girls' mental health by focusing on systems that support or fail to support them. The issue explores intersectionality, trauma-informed approaches, and the impact of social media on bod...
A recent study published in PLOS One reveals that over half of teenage girls experience heavy bleeding and 40% have iron deficiency. A simple questionnaire, known as the SAMANTA questionnaire, has been found to accurately identify young girls at risk of iron deficiency, who may also be at risk of anaemia.
Experts warn that nicotine-containing products, including vapes, heated tobacco, and shisha, cause cardiovascular damage regardless of delivery system. The report highlights a rapid rise in youth addiction fueled by flavours and social media marketing.