Scientists Can Now Detect Cancer with Just One Drop of Blood

The new test may help bump cancer from its spot as the number two killer in America.

How Much Hair Loss Is Normal?

Clumps in the drain? We've got the scoop on when to worry.

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Acting #LikeABoss Boosts Testosterone in Women

Being a badass lady boss increases certain hormones in women that can have serious health perks.

The 7 Different Types of Infidelity

Cheating doesn't just happen between the sheets.

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What's Worse: Getting Too Little Sleep or Disrupted Sleep?

Both will make you cranky, but one has a way bigger effect on your a.m. happiness.

Relationships Start With A Smile—Literally

Turns out, the good guys can win after all.

6 Weird Reasons You Can't Sleep

Who knew your toothpaste could keep you up?

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Two-Thirds of the World's Population Has Herpes

Yikes—more than 3.7 billion people under the age of 50 are infected with HSV-1.