News

  1. Health & Medicine

    Distracted? Tea might help your focus

    An amino acid in tea combines with the brew's caffeine to enliven brain cells that aid concentration.

    By Janet Raloff
  2. Health & Medicine

    Tea compound aids dying brain cells

    A constituent of green tea rescues brain cells damaged in a way that mimics the effect of Parkinson's disease.

    By Janet Raloff
  3. Health & Medicine

    Malaria’s sweet spot

    The malaria parasite's reliance on a sugar in the gut of mosquitoes may offer a way to block the disease's transmission.

    By Patrick Barry
  4. Astronomy

    Out-of-focus find

    Blurry images yield estimates of the true width of glowing meteor vapor trails in Earth's upper atmosphere.