Your search for long-lost cousins could open you up to "genetic hacking." And unlike credit card information, you can't just cancel your old genome and get a new one.

New findings on cellular sleep suggest it's not as harmless as once thought. Finding the "dimmer switch" could be a way to fight aging, say researchers.

Doctors used to prescribe bedrest for people with heart failure, but research with swine suggests working out can boost heart artery health.

After a hysterectomy, doctors often prescribe women twice as many opioids as they use. There may be a simple way to change that without losing pain control.

Men account for less than 1% of all breast cancer cases, but their five-year mortality rate is 19% higher than that of women, according to a new study.

One year after the Blavatnik Family Foundation announced a $200 million commitment to Harvard Medical School, philanthropist Len Blavatnik spent the day at HMS visiting with scientists to learn more about research taking place on campus.

Just 1 in 4 parents have gotten questions about safety issues from another parent before a playdate, a new poll suggests. Here's what to ask.

DEET may not repel malaria-carrying mosquitoes from humans after all. Instead, it may work like a cloak to hide our scent and fend off the critters' bites.

Training left elder care providers more confident in handling the spiritual needs of their clients, research finds.

"For everything we envision people needing or wanting to do to become independent... they really need two hands working together."