Eating a healthy diet as a child is linked to girls having their first menstrual period at an older age than those who consumed a less healthy diet, according to a new study. The findings remained unaltered by the girls' body mass index or height, both of which have been associated with the earlier onset of periods. The study has implications for health in later life as it is well known that women who started their periods at an early age may be at higher risk for diabetes, obesity, breast cancer and diseases of the heart and blood vessels.

A systematic evidence review finds that consuming cannabis while pregnant appears to increase the odds of preterm birth, low birth weight and infant death.

One of the first studies in this area to use clinical-level diagnoses reveals a range of differences between young people with and without mental health conditions when it comes to social media -- from changes in mood to time spent on sites.

Electric vehicles (EVs) are no longer just for tech geeks or the super rich—they’re becoming more affordable and accessible for everyone. Thanks to government incentives, lower battery costs, and more car brands offering budget-friendly EV models, it’s easier than ever to imagine driving electric as your first car.

Charging up is also more convenient today. With over 75,000 public charging stations in the U.S. and nearly 13,000 in Canada, finding a spot to plug in is getting as easy as finding Wi-Fi. As more people make the switch, EVs are powering a cleaner planet—and helping your generation drive toward a greener future.

The Haenyeo, a group of all-female divers from the Korean island of Jeju, are renowned for their ability to dive in frigid waters without the aid of breathing equipment -- even while pregnant. A study shows that the divers' remarkable abilities are due to both training and genetic adaptation, including gene variants associated with cold tolerance and decreased blood pressure. The divers also showed pronounced bradycardia, or slowing of the heart rate, when they dived, but this trait is likely due to a lifetime of training, not genetics.

Bad habits such as smoking, heavy drinking and lack of exercise must be tackled as early as possible to boost the odds of a happy and healthy old age.

A study sheds light on when and how bacterial strains emerge on facial skin. The findings could lead to new treatments for acne and other conditions, and may also help optimize the timing of such treatments.

Breast cancer deaths among women ages 20-49 declined significantly between 2010 and 2020, according to a new study.

Childhood trauma significantly increases the likelihood of engaging in harmful alcohol consumption, smoking and illicit drug use, by the age of 18.

Results of a large, global clinical trial spanning five continents with over 1,700 patients with bronchiectasis has demonstrated benefits of an investigational, once-a-day pill called brenso catib as a therapy for the chronic lung condition. It may soon become the first-ever FDA-approved treatment for bronchiectasis.

A new study may offer reassuring news for parents whose children have a history of concussion, but want to get back to playing sports. Researchers spent more than a decade scouting fields, rinks and courts across the Greater Toronto Area for participants with a history of concussion and tested their performance on complex eye-hand coordination tasks, finding that age and previous sports experience were larger factors in cognitive-motor integration than a history of multiple concussions.

Depression in young teens could be easier to treat than in adulthood due to the symptoms being more flexible and not yet ingrained, a study shows.

Persistently high blood sugar and insulin resistance significantly increased the risk of worsening functional and structural heart damage during growth from adolescence to young adulthood, a new study shows.

If you’ve been trying to quit vaping—or know someone who is—there’s big news: A new study found that teens and young adults who took a prescription pill called varenicline were more than three times as likely to stop vaping compared to those who just used counseling or a text support service. Varenicline is already FDA-approved to help adults quit smoking, but this study is the first to show how it could seriously help younger people quit vaping, too. Researchers say this is a big deal, especially since vaping is common among high schoolers.

If you’ve been trying to quit vaping—or know someone who is—there’s big news: A new study found that teens and young adults who took a prescription pill called varenicline were more than three times as likely to stop vaping compared to those who just used counseling or a text support service. Varenicline is already FDA-approved to help adults quit smoking, but this study is the first to show how it could seriously help younger people quit vaping, too. Researchers say this is a big deal, especially since vaping is common among high schoolers.

The molecular mechanism behind why heart attacks can vary in severity depending on the time of day has been uncovered, potentially paving the way for innovative treatments that align with the natural circadian rhythm.

Body appreciation differs between Middle-Eastern and Western societies, a new international study can reveal, highlighting how cultural and family influences shape body image and eating behaviors in young women. The study surveyed over 850 women aged 18-25 in Australia and Lebanon, examining the roles that mothers and sisters play in shaping body dissatisfaction, body appreciation, and eating patterns.

Oral hormone therapy may benefit heart health in menopausal women. A new analysis of data from the Women's Health Initiative found that estrogen-based oral hormone therapy had a long-term beneficial effect on biomarkers of cardiovascular health, including cholesterol.

Adolescents who sleep for longer -- and from an earlier bedtime -- than their peers tend to have improved brain function and perform better at cognitive tests, researchers have shown. But the study of adolescents in the US also showed that even those with better sleeping habits were not reaching the amount of sleep recommended for their age group.

A new study found that the oral and extended-release injectable forms of naltrexone are equally effective in helping patients consume less alcohol, suggesting that clinicians should integrate this medication into routine hospital care.