News

  1. Health & Medicine

    Diet sodas may confuse brain’s ‘calorie counter’

    Among regular consumers of sugar-free soft drinks, networks that equate sweet flavors with energy intake may grow numb to the real stuff.

    By Janet Raloff
  2. Earth

    Ancient volcanoes destroyed ozone

    Prehistoric eruptions gave off huge amounts of a gas that erodes the UV-blocking atmospheric layer.

    By Alexandra Witze
  3. Health & Medicine

    Fish oil components may not benefit everyone’s heart

    A six-year study finds that omega-3 fatty acids don't lower heart risk in people with diabetes.

    By Nathan Seppa
  4. Life

    You have grandpa’s chromosome tips

    Older fathers pass more gene-protecting DNA to their paternal grandkids.