Researchers have had lots of challenges trying to understand what causes multiple sclerosis (MS). New research shows what may be the key driving force behind MS and similar diseases.

Some obese people take weight-loss drugs to help deal with their health problem. One of these drugs, orlistat, may be harmful.  The drug already carries a black box warning for liver damage, which the FDA added last year.

White blood cells are the good guys, the soldiers of our immune system. They fight off disease, including cancer. But even when these cells have been specially trained to attack tumors, they haven't survived long enough to do any good against crafty, nasty melanoma cancer cells.

Olive oil seems to be promoted as one of the healthiest oils. Flaxseed oil too. But ordinary canola oil is now being promoted as a cancer-fighting hero that's a healthy choice for everyday cooking.

Heartburn can badly damage the lining of your esophagus (the tube that carries food from the throat to the stomach). This damage can raise your risk for cancer. Now, researchers say there is a safe way to fix this damage.

Smoking not only hurts your lungs but also your kidneys. People who smoke raise their risk of kidney cancer, and those who keep smoking may be making the cancer worse.

Scientists have discussed various ideas concerning possible risk factors for developing Alzheimer's including low involvement in leisure activities and social interactions, sedentary lifestyle, diabetes mellitus and hypertension.

If it's such a happy place to live, one wonders why people would choose to end their lives. But it turns out that the happiest places on earth are also the deadliest in terms of suicide rates.

Fernando Lamas famously said to Johnny Carson on The Tonight Show , "Johnny, I would rather look good than to feel good any day." With significant acne and rosacea, feeling good and looking good may not be happening.

Being a sight for sore eyes of course means it's good to see you. Having sore eyes is not necessarily a sight to behold. Minimizing allergic reactions in your eyes can help one return to the preferred status of being a sight for sore eyes.