Adolescent girls who reach puberty at an earlier age may also have a greater chance of developing migraine headaches, according to new research.

There is no association between exposure to the 2009 H1N1 'swine flu' vaccine during pregnancy and health problems in early childhood, concludes a new study.

New evidence suggests that adolescent bullying and victimization may have origins in the home. Many bullies have parents who are hostile, punitive and rejecting. A unique longitudinal study provides a more complete understanding of how parents' belittling and critical interactions with adolescents thwart their ability to maintain positive relationships with peers. Derisive parenting precipitates a cycle of negative affect and anger between parents and adolescents, which ultimately leads to greater adolescent bullying and victimization.

A new study shows that teens who use prescription opioids to get high are more likely to start using heroin by high school graduation.

Teenagers with large amounts of grey matter in the brain at age 14 are more likely to increase their alcohol use over the next five years, according to a whole brain imaging study.

Some young adults who were bullied as a child could have a greater risk of ongoing depression due to a mix of genetic and environmental factors.

A new study reviewed evidence from research conducted around the world and estimated the prevalence of conduct disorder to be around 3 percent in school-aged children and a leading cause of referral to child and adolescent mental health services. Yet paradoxically it is one of the least widely recognized or studied psychiatric disorders, and funding for research into it lags far behind many other childhood disorders.

Teenagers who can describe their negative emotions in precise and nuanced ways are better protected against depression than their peers who can't. That's the conclusion of a new study about negative emotion differentiation, or NED -- the ability to make fine-grained distinctions between negative emotions and apply precise labels.

Pregnant women with migraine have an increased risk of miscarriage, caesarean sections and giving birth to a child with low birth weight. This is shown by a comprehensive register-based study. The study also suggests that prescription migraine drugs may alleviate the complications.

A new study tracked the mental and physical health of US-born teenage children of Mexican and Central American immigrants in California in the years before and after the 2016 election. Nearly half of the youth reported worrying at least sometimes about the impacts of US immigration policy on their families, and those with more worries also experienced higher anxiety and poorer sleep quality than their peers.

The development of neural circuits in youth, at a particularly important time in their lives, can be heavily influenced by external factors -- specifically the frequent and regular use of cannabis. A new study reports that alterations in cognitive control -- an ensemble of processes by which the mind governs, regulates and guides behaviors, impulses, and decision-making based on goals are directly affected.

Adolescents with autism need the support of their parents or guardians to prioritize independence so that they are prepared for learning to drive, according to a study of specialized driving instructors who have worked specifically with young autistic drivers.

Are children, teenagers and adults who spend a lot of time playing video games really more obese? A meta study has looked into this question. The cliché is true -- but only for adults.

Preliminary findings from a new study of middle school and high school students suggest that they got more sleep and were less likely to feel too sleepy to do homework after their district changed to later school start times.

Teenagers who don't get enough sleep may be at an increased risk of engaging in unsafe sexual behaviors, such as not using condoms or having sex under the influence of alcohol or drugs, according to new research.

An imbalance of functioning in attention-related brain systems may help forecast the course of teen depression, according to a new study.

A new study explores emerging drug use in the form of adolescent vaping and its association with delinquency among 8th and 10th grade students.

Women have long been told fainting is a common but harmless symptom of pregnancy, but new research shows it may indicate issues for both the baby and mother's health, especially when it occurs during the first trimester.

Pediatricians are often reluctant to recommend bariatric surgery for teenagers, but a study concludes it is a justifiable treatment for adolescents with persistent extreme obesity if they can maintain a healthy lifestyle afterward.

Children and adolescents with long-term obesity have increased arterial stiffness by their late teens, a study of more than 3,000 children followed from age 9 to 17 shows. These results, in the researchers' view, call for more initiatives to reduce teenage obesity.