News

  1. Health & Medicine

    Alzheimer’s vaccine trial is suspended

    A drug company in Ireland has halted tests of an experimental vaccine for Alzheimer's disease.

    By John Travis
  2. Tech

    Itsy chain turns bitsy gears

    A tiny chain with links the size of biological cells offers a new way to deliver power to micromachines.

    By Peter Weiss

  3. Disorder Decline: U.S. mental ills take controversial dip

    Far fewer people suffer from mental disorders requiring treatment than was initially indicated by two national surveys.

    By Bruce Bower

  4. Cool Discovery: Menthol triggers cold-sensing protein

    A cell-surface protein that lets ions flow into cells responds to menthol and cool temperatures.