To mark International Women's Day, we feature portraits and profiles of determined women around the world.

Nearly a quarter of teens sleep 5 hours or less per night and the majority sleep less than 8 hours. The problem is pervasive and technology doesn't seem to be the main culprit, according to a new report.

The Canadian province is permanently ending the biannual time shifts for more light at the day's end. But research shows daylight saving increases health risks.

The chaos of the day can make it hard to shut off your brain and fall asleep. Here's how to create a relaxing environment before bedtime to help you quiet the chatter and feel ready for sleep.

The FDA's controversial vaccine chief, Dr. Vinay Prasad, is leaving the agency. It's the second time he has abruptly departed following decisions involving the review of vaccinations and specialty drugs.

A mom and science writer offers an operating manual for parents grappling with kids' screen use and cravings for sweets.

Ahead of Daylight Saving time this weekend, a sleep doctor offers expert advice to get your best night's sleep, or a quick 'nappucino' if you don't have the time.

It's an age old practice that's having a moment right now. But is there anything to the health claims? Scientists say sauna is more than hot air.

A study in The Lancet finds that pregnant women in emergency rooms used less Tylenol after President Trump said it could raise their babies' risk of autism. Scientists say there is no proven link.

Health Secretary Robert F. Kennedy Jr. announced that 53 medical schools in 31 states will expand their nutrition curriculum to 40 hours. Most medical schools fall short of the recommended 25 hours.