Your Health

When Jimmy Carter said his advanced melanoma was gone, he credited immunotherapy, treatments that harness the immune system to fight cancer cells. This idea dates back to a 19th-century doctor.

Most hospitals don't require neurologists, neurosurgeons or even fully trained doctors to make the ultimate call.

For the first time in decades, the number of children with asthma isn't increasing, federal scientists report. But cases continue to rise among African-American children and poor children.

Now that recreational use of marijuana is legal in four states, law enforcement officials are looking for quicker ways to test drivers for excessive pot use. Entrepreneurs are taking on the challenge.

For three decades, men who have sex with men were barred from ever donating blood. A new policy will allow gay and bisexual men to donate, but only if they've been celibate for at least a year.