How can you know that any animal, other human beings, or anything that seems conscious, isn’t just faking it? Does it enjoy an internal subjective experience, complete with sensations and...

Maybe it’s a bride standing in a hot chapel, or an exhausted runner after a race. It could be someone watching a medical procedure on television or a donor at a blood drive.  Maybe...

They were the drugs that were supposed to save the U.S. tens of billions of dollars. Called "biosimilars," they are near-copies of complex and expensive biologic drugs to treat cancer, rare...

U.S. women will soon have another drug option designed to boost low sex drive: a shot they can give themselves in the thigh or abdomen that raises sexual interest for several hours. The...

Chips, soda and frozen pizzas tend to be full of salt, sugar and fat, but now scientists are trying to understand if there's something else about such processed foods that might be bad for...

Brian Jetter was on life support, a healthy 40-year-old suddenly battling pneumonia and sepsis, and a slew of tests had failed to find the cause. Mystery illnesses like this kill thousands of...

Studies suggest men often choose being a good father over being healthy.  Becoming a father is a major milestone in the life of a man, often shifting the way he thinks from being “me...

Doctors should offer a daily HIV prevention pill to healthy people who are at high risk of getting infected with the virus, an influential health care panel recommended Tuesday. The new...

To save babies from brain-damaging birth defects, University of Pittsburgh scientist Carolyn Coyne studies placentas from fetuses that otherwise would be discarded — and she's worried this kind...

I easily remember laughing at Wile E. Coyote trying to catch the Road Runner while watching Saturday morning cartoons as a child.  I can still see the Coyote walking slowly through the sweltering...