Antibiotics work best when taken as directed. But will skipping a pill
here or there really make a difference in the course of an infection?
Yes, it will—as participants in this study found out.
Learn why it's so important to pay close attention to your prescription's directions.

A survey found that many Americans are confused about the Zika virus.
But CDC cleared up 1 big question about the infection's link to birth defects this week.
See how much you know about this growing public health problem.

You might not know that infant rice cereal contains inorganic arsenic.
But it does.
And now the U.S. Food and Drug Administration would like it to contain less.

Women who have endometriosis may be at increased risk for heart disease.
What would connect a gynecological condition to heart problems?
One possibility lies in how endometriosis is treated.

Did seasonal allergies take the fun out of gardening last year? Turn this year's plots
and patches into an allergy-friendly zone with these tips.