Rob Stein






Melissa and her husband started trying to have a baby right after they got married. But nothing was happening. So they went to a fertility clinic and tried round after round of everything the doctors had to offer. Nothing worked.

"They basically told me, 'You know, you have no chance of getting pregnant,' " says Melissa, who asked to be identified only by her first name to protect her privacy.

But Melissa, 30, who lives in Ontario, Canada, didn't give up. She switched clinics and kept trying. She got pregnant once, but that ended in a miscarriage.

The Food and Drug Administration said Tuesday that it is requiring drugmakers to warn patients that testosterone products may increase the risk for heart attacks and strokes.

Testosterone replacements are approved to treat men with low testosterone related to medical problems, such as genetic deficiencies, chemotherapy or damaged testicles.

A potentially life-threatening gastrointestinal infection is more common than previously estimated, federal health officials reported Wednesday.

The infection, caused by a bacterium known as Clostridium difficile, or C-diff, causes nearly 500,000 illnesses in the United States each year and kills about 29,000, according to the federal Centers for Disease Control and Prevention.

Babies at high risk for becoming allergic to peanuts are much less likely to develop the allergy if they are regularly fed foods containing the legumes starting in their first year of life.

That's according to a big new study released Monday involving hundreds of British babies. The researchers found that those who consumed the equivalent of about 4 heaping teaspoons of peanut butter each week, starting when they were between 4 and 11 months old, were about 80 percent less likely to develop a peanut allergy by their fifth birthday.

Could using a dishwashing machine increase the chances your child will develop allergies? That's what some provocative new research suggests — but don't tear out your machine just yet.

The study involved 1,029 Swedish children (ages 7 or 8) and found that those whose parents said they mostly wash the family's dishes by hand were significantly less likely to develop eczema, and somewhat less likely to develop allergic asthma and hay fever.