Humans

  1. Health & Medicine

    Giving the brain a hand

    PROFILE: Scientist Kristen Brennand uses stem cells to understand brain disorders.

    By
  2. Genetics

    Your inner Neandertal

    New study finds some DNA in modern humans was passed down from Neandertals.

    By
  3. Health & Medicine

    A pepper part that burns fat

    Study finds that dihydrocapsiate may give a diet extra power.

    By
  4. Health & Medicine

    The mercury in that tuna

    Pinning down how much of the poison is in the fish we buy.

    By
  5. Humans

    A louse-y start for clothing

    A date for appearance of body lice suggests time of first clothes.

    By
  6. Health & Medicine

    What the appendix is good for

    Some body parts seem pointless but in fact have purpose.

    By
  7. Humans

    Writing on eggshells

    Etchings on artifacts suggest that really ancient people used symbols.

    By
  8. Health & Medicine

    Making light of sleep

    Teens are prone to sleep problems, but a little sunshine could help.

    By
  9. Health & Medicine

    Physics of running bared

    Running without shoes softens the blow.

    By
  10. Health & Medicine

    Slumber by the numbers

    Fewer than 1 in 10 teens get ideal amount of sleep.

    By
  11. Health & Medicine

    Got milk? How?

    Scientists are tracking down the first people who squeezed this nutritious liquid out of animals thousands of years ago.

    By
  12. Health & Medicine

    Drugs and zzzzzz’s

    People who take the drug ecstasy are more likely to suffer from a sleeping disorder.

    By