Your Health

The vaccine is only about 23 percent effective against the dominant flu strain, according to the Centers for Disease Control and Prevention. That's because the strain mutated slightly.

Bariatric surgery works for severely obese patients because it shrinks the size of the stomach. But years later, the stomach starts to expand and some patients regain the weight they lost.

Martin Pistorius spent more than a decade unable to move or communicate, fearing he would be alone, trapped, forever. NPR's new show Invisibilia tells how his mind helped him create a new life.

You say banana; this orangutan says ... well, it's hard to tell what she's saying. But the rhythmic, speechlike sounds of the zoo-dwelling ape have started scientists talking.