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  1. Health & Medicine

    Rogue immune cells can infiltrate old brains

    Killer T cells get into older brains where they may make mischief, a study in mice and postmortem human brain tissue finds.

    By Laura Sanders
  2. Anthropology

    East Asians may have been reshaping their skulls 12,000 years ago

    An ancient skull-molding practice had a long history in northeastern Asia, researchers say.

    By Bruce Bower
  3. Climate

    Europe’s latest heat wave has been linked to climate change

    Global warming made the June heat wave at least five times more likely to happen.

    By Carolyn Gramling
  4. Neuroscience

    This brain region may be why some robots send chills down your spine

    Scientists may have traced the source of the “uncanny valley” sensation in the brain.