But he does have concerns about the vaccine. The Sept. 11 terrorist attacks have some Americans worried about the possibility of biological and chemical attacks. Dr. Tim Johnson says the current crisis shows Americans are willing to give blood, and explains why it makes sense to keep doing so. While thousands of Americans escaped death in last week's terrorist attacks, the survivors, witnesses, and even observers rattled by the attacks are susceptible to stress reactions. There's new hope for millions of people who undergo angioplasty each year around the world.
Researchers say they've got a new device that prevents the reblockage of arteries.
The Party's Long Over People who may have experimented with drugs during their younger years are sometimes shocked to hear they contracted Hepatitis C years later. Dr. Tim Johnson looked at one story. Minnesota Viking lineman Korey Stringer collapsed of heat stroke after a team practice in sweltering weather Tuesday, and across the country, people seem to be wilting in the heat. There are very smart, even gifted children who suffer from a neurological disorder that affects their ability to interact socially, to develop communication skills, and understand emotions. Read more about a form of autism that could affect one in several thousand children, to varying degrees.