Steve Jobs today posted a letter on the Apple web site stating that he has a "hormonal imbalance" that caused him to lose weight throughout 2008, and that he's being treated and staying on the job as Apple's CEO.

Women with bulimia nervosa may particularly impulsive because of their brain activity patterns, a new study shows.

Medication helps depressed kids -- but only those whose symptoms are severe enough to warrant antidepressant treatment, an analysis of clinical trial data suggests.

A new study shows Fosamax is effective in treating osteoporosis, but may not work the way experts believed.

Grape seed extract may have potential in curbing leukemia, new research shows.

Ophthalmologist Andrew Iwach shares tips on the safe way to open champagne bottles and avoiding eye damage from flying corks.

Taking vitamin C, vitamin E, or beta-carotene supplements may not cut cancer risk, researchers report.

Scientists have identified genes that made the Spanish flu pandemic of 1918 especially deadly. It's a discovery that may prove useful if another flu pandemic breaks out.

An article in a medical journal is sharply critical of a popular book that offers an alternative schedule of children's vaccines.

Cognitive behavior therapy and Zoloft are effective treatments for childhood anxiety disorders -- but the combination works best, a government-funded study finds.

A new survey suggests that one in 25, or 2.2 million, older Americans are taking drug -- or drug and supplement -- combinations that are potentially risky.

A Canadian company, Dorsey Marketing Inc. (DMI), is recalling certain Gourmet Market cocoa products sold at Big Lots and Shopko stores nationwide because they may contain melamine, a chemical that can cause kidney disease.

A new study shows older women who participated in weight-bearing activities like running, volleyball and tennis during adolescence have stronger bones later in life those women who didn’t play sports or did only non-weight bearing exercise like swimming.

An 11th-hour ruling from the Bush administration gives health care workers, hospitals, and insurers more leeway to refuse health services for moral or religious reasons.

Some sneezes may happen just by thinking about sex or having an orgasm, British doctors report.

Actor Jeremy Piven is ending his role in the Broadway revival of the David Mamet play Speed the Plow after being diagnosed with a "high mercury count," according to his doctor.

Doctors in England report on a woman with "swallowing syncope" who sometimes fainted when eating sandwiches.

Rachel Vreeman, MD, and Aaron Carroll, MD, debunk six holiday health myths.

Violent, rhythmic head banging can cause brain injuries, possibly even stroke.

The woman who recently got the first face transplant in the U.S. is "doing well," her doctors at the Cleveland Clinic said.

CDC: 27% of Americans are obese, 21% smoke, 8% have diabetes, 4% have asthma, and 21% of us drink too much -- yet 66% report very good or excellent health.

Type 2 diabetic people who ate a low-glycemic-index diet had greater blood sugar control after six months than diabetic peple who followed another weight loss diet.

A list of the top 10 offbeat WebMD news stories written by WebMD of 2008.

A list of the top 10 news stories of 2008 on Medscape, WebMD's companion site for doctors.

The FDA has approved a new drug called Triplix for use along with diet to lower LDL ("bad") cholesterol, lower triglycerides, and raise HDL ("good") cholesterol, according to Abbott, the drug company that makes Trillipix.