Celebrities are constantly debuting fresh, youthful looks and many people question how they are able to drastically improve their appearance. A dermatologist from Brigham and Women's Hospital in ...

Russia and other hostile states have become increasingly brazen in adopting “gray zone” attacks against Europe and the United States, leaving defense officials with a dilemma: How to respond ...

Twins are pretty rare, accounting for just 3% of births in the U.S. these days. But new research shows that for primates 60 million years ago, giving birth to twins was the norm.