News

  1. Life

    XMRV tie to chronic fatigue debunked

    A virus that was tied to the mysterious syndrome by 2009 research appears to have been a laboratory contaminant.

    By Laura Sanders
  2. Humans

    Humans reached Asia in two waves

    New genetic data show that some early migrants interbred with a mysterious Neandertal sister group.

    By Bruce Bower
  3. Chemistry

    Science gets the deets on DEET

    New research demonstrates how insect repellent may mix up mosquitoes’ smelling machinery.

    By Rachel Ehrenberg
  4. Health & Medicine

    Ringing in ears may have deeper source

    Tinnitus results from the brain’s effort to compensate for hearing loss, a study concludes.

    By Laura Sanders
  5. Health & Medicine

    Preterm infants show mortality risks as children, adults

    Death rates are higher in preemies than full-term babies when these people reach early adulthood, a large study finds.