Circadian researchers explain why a single hour can rattle your body, and the simple steps that streamline the switch.

A new drug combination cuts the risk of death in people with advanced prostate cancer by 40% over eight years, according to ...

You know that obesity and high blood pressure can raise your risk for a heart attack, but WebMD's slideshow illustrates some lesser known triggers that might surprise you.

Diabetes is a number of diseases that involve problems with the hormone insulin. There is no cure for diabetes. The warning signs of diabetes can be so mild that you don't notice them. That's ...

Throughout our lives, healthy cells in our bodies divide and replace themselves in a controlled fashion. Cancer starts when a cell is somehow altered so that it multiplies out of control. A tumor is a ...

Learn exercises to relieve knee osteoarthritis pain and stiffness from this WebMD slideshow. Photographs illustrate moves to strengthen the knee and help prevent knee injury.

Your morning cup of joe just might give your cholesterol level an unwanted jolt. French press or Turkish coffee lets through cafestol, which raises levels of LDL, or “bad,” cholesterol. Espresso does ...

A dislocated knee is when the three bones of your knee are out of place and aren’t aligned the way they should be. It can happen if the structures in your knee are abnormal. Some people are born with ...

This “good” cholesterol, called HDL, seems to go up in people who have three or more eggs a day. Of course, LDL, the “bad” type, goes up, too. But the individual pieces of each get bigger. That makes ...

Chromium is an element found naturally in rocks, soil, and ocean water. Some people also take a specific type of chromium, trivalent chromium, as a supplement. Chromium may affect how your body breaks ...

Coffee starts out healthy, but sugar and flavored sweeteners add fat, calories, and a higher risk of heart disease. Aim for 1 teaspoon of sugar (or less) per cup, of the 6 (women) or 9 (men) teaspoons ...

Chemotherapy -- a treatment for cancer that uses strong drugs -- can lead to what’s sometimes called “chemo brain.” You may have trouble remembering details like names or dates, have a hard time multi ...