One of the mysteries of cancer is its unpredictability. Sometimes chemotherapies work, and sometimes they don't. Recent research may help physicians personalize treatment for individual patients.

Kidney transplants save lives, but only if recipients' bodies accept the new organ. Now, scientists are working on ways to prevent kidney transplant rejection.

Serotonin is a chemical in the brain that carries signals between nerve cells. There are increased serotonin levels in the bloodstream of those with autism - but, until recently, nobody knew why.

Does the type of radiation used to treat cancer affect a person's quality of life years down the road? New research suggests that indeed it does.

Vitamin A derivatives, drugs known as retinoids, have been used successfully to treat certain types of leukemia. Not all forms of the disease respond to them, though. Scientists have discovered that adding another medication may overcome this resistance.

The wealth of individual U.S. states also appears to predict cardiovascular health in women. Women from wealthier states were found to have lower levels of heart inflammation, a key heart disease risk factor.

Scientists have found a method for creating laboratory-built retina structures from human blood. The synthetic retinas could be used to study and test drugs for degenerative eye disease, including retinitis pigmentosa, which causes blindness.

In Alzheimer’s patients, a naturally occurring protein, Tau, acts strangely and forms tangles in the brain. New research suggests that another protein, FKBP52, may have something to do with it.

We're told to eat lots of vegetables and whole grains. They should be the staple of our diet. A new study finds that the way these foods are produced impacts our risk of cancer - slightly - but still the risk is there.