Lawmakers demand answers on HealthCare.gov foul-up

Scientists identify specific gene enhancers in their work with mice

Review suggests it was associated with a 40 percent drop in risk of most common form of disease

Obesity alone doesn't explain the findings, researchers say

Scientists identify specific gene enhancers in their work with mice

Review suggests it was associated with a 40 percent drop in risk of most common form of disease

Obesity alone doesn't explain the findings, researchers say

FDA experts say users risk corneal scratches, even blindness from these products

However, total cholesterol remains too high and screening rates too low, experts say

Doctors and patients need to talk more about this potential problem, researchers say