1. Health & Medicine

    Salt secrets

    You probably eat a lot more salt than you realize, and that could be bad for your health.

  2. Health & Medicine

    The chemistry of sleeplessness

    A brain chemical may help people stay awake even when they are really, really tired.

  3. Health & Medicine

    Ear pain, weight gain

    Scientists have found a link between frequent childhood ear infections and obesity later in life.

  4. Health & Medicine

    Homework blues

    A good mood may not be so great for school work.

  5. Health & Medicine

    Yummy bugs

    Eating insects is a common practice in most places, at least outside of the United States and Europe.

  6. Health & Medicine

    Hey batter, wake up!

    Baseball teams that travel across the country may be at a disadvantage when they play.

  7. Humans

    Fakes in the museum

    A close-up examination of crystal skulls reveals the true, recent origins of these "relics"

  8. Health & Medicine

    Gut microbes and weight

    A new report links a baby's gut microbes with the chance that the baby will become an overweight child.

  9. Health & Medicine

    Foul play?

    Genetic differences may affect the results of tests given to athletes to see if they have been taking performance-enhancing drugs.

  10. Health & Medicine

    Recipe for health

    Obesity is on the rise, but there are plenty of things you can do to maintain a healthy weight.

  11. Health & Medicine

    Blood goes stale—and fairly quickly

    Doctors have long thought it safe to store donated blood for up to 42 days, but some patients do better when the blood they receive is fewer than 14 days old.

  12. Health & Medicine

    Mind-reading machine

    Researchers have used brain scans to measure how the brain "sees" pictures—and to try to predict what a person is looking at.