News

  1. Old memories interfere with remembering new ones

    Scans in healthy people reveal how the brain juggles outdated versus fresh information.

    By
  2. Life

    Exercise brings on DNA changes

    Workouts and caffeine can turn on genes that make energy-regulating proteins.

    By
  3. Physics

    Lose a memory, use energy

    Lab experiment confirms link between erasing information and heat flow.

    By
  4. Space

    Galactic smashup leaves dark matter debris

    Find in ‘train wreck’ cluster forces astronomers to re-think theories about relationship between mysterious dark matter and galaxies.

    By
  5. Health & Medicine

    Excess salt may stiffen heart vessels

    As sodium in diet increases, a coronary risk factor independent of blood pressure escalates, according to a study in middle-aged U.S.