If you have teenagers — or were once a teenager yourself — you've probably experienced this: Your kid's jeans fit perfectly in September, but by December they're showing ankle. The adolescent growth ...

It’s not surprising that many people fear the dentist. Replacing a tooth often requires invasive surgery and implanting a titanium screw into a patient’s jawbone, then waiting months for that to ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." A study out of Japan showed how targeting genes can regrow teeth in animals. Now, the team has turned to ...