Evidence of two autoantibodies signaled a 70 percent risk, researchers say

But 45 million Americans overall still don't have health insurance

Pregnant women who live with smog at higher risk, but experts caution the finding is not definitive

Some supplements are good for rheumatoid arthritis (RA). Some are dangerous. WebMD explains which supplements and herbs may help relieve rheumatoid arthritis symptoms and which ones you should never take.

WebMD talks to experts about how smoking and drinking affect rheuamtoid arthritis.