Negative body image is associated with increased tobacco and alcohol use, with implications for both young men and women, new research concludes.

The sleep rhythms that reflect circadian systems peak later in teenagers than in adults, and vary as much as 10 hours in individuals across at any ages, according to a new study.

Adolescent male mice fed a diet lacking omega-3 fatty acids show increased anxiety-like behavior and worse performance on a memory task in adulthood, according to new research.

Only one in four young adults and teens with opioid use disorder (OUD) are receiving potentially life-saving medications for addiction treatment, according to a new American research.

Physical activity among children and teens is lower than previously thought, and, in another surprise finding, young adults after the age of 20 show the only increases in activity over the lifespan.

The latest HPV vaccine could prevent most HPV infections — and millions of cancers — worldwide, according to new researchers.

Infants who were breastfed for less than six months before starting infant formula milk and infants who had mothers who were obese at the start of pregnancy, were much more likely to develop nonalcoholic fatty liver disease (NAFLD) as adolescents, according to a novel study.

Researchers have shown links between father involvement and daughters' sexual behavior, with the standard explanation attributing that influence to shared genes that impact both a father's behavior and relationships and his child's problem behavior, including engaging in risky sex and affiliating with delinquent peers. But a study suggests that even though genes likely play a part, they may not be the whole story.

Children born to women with gestational diabetes whose diet included high proportions of refined grains may have a higher risk of obesity by age 7, compared to children born to women with gestational diabetes who ate low proportions of refined grains, according to results of a new study.

For mothers who feel that they are not in control of certain aspects of life and who are struggling with their relationship to their teenage children, social support may make a great difference. But the same does not seem to apply to fathers in the same situation, a new study shows.

Prenatal tobacco exposure is known to have negative short-term impacts including preterm birth, low birth weight and subsequent behavioral issues. However, a new study found that the negative impacts can last well into the child's future. The results showed that exposure to as few as 10 cigarettes was associated with negative impacts on the executive function of adolescents who were exposed prenatally.

23.93% of all adolescents in Austria are currently suffering from a mental health problem, over a third of all adolescents have had a mental health problem at some stage in their lives. That is the central finding of the first Austria-wide epidemiological study into the prevalence of mental health problems in Austria.

A new study analyzes crash rates per mile driven for all drivers and found that for every mile on the road, drivers ages 16-17 are three times as likely as adults to be involved in a deadly crash.

As more children with autism enter adulthood, improved communication between providers, adolescents and caregivers is needed to help those with autism make adult health care decisions, suggests a new report.

Children who participated in the PROSPER (PROmoting School-community-university Partnerships to Enhance Resilience) program over seven years ago showed lower rates of substance abuse after high school graduation, according to a new study.

The risk of potentially life-threatening morbidity around childbirth, such as renal failure, obstetric shock, and amniotic fluid embolism, increases in older mothers, according to a new study.

Teenagers injured through drinking, drug abuse or self-harming have a five-fold increased risk of dying from suicide in the next decade.

Living in a city could significantly increase young people's vulnerability to psychotic experiences, according to a new study.

One in three high school students reports riding with a driver who has been drinking, while nearly one in five was in a car where the driver had consumed marijuana, according to a new study.

A new study into the effects of chronic physical illness in children on their life-long mental health has found that such experiences appear to increase the chances of them having depression and anxiety in adulthood.