Humans

  1. Psychology

    What makes a pretty face?

    Beautiful faces are symmetrical and average. Do we prefer them because this makes them easier for our brains to process?

    By Alison Pearce Stevens
  2. Tech

    Implant traps cancer cells on the move

    A device implanted under the skin extended the life of mice with breast cancer. It trapped injected cancer cells before they created tumors in organs throughout the body.

    By Esther Landhuis
  3. Health & Medicine

    Simpler way to screen for hidden hearing loss?

    Many teens today walk around with undiagnosed hearing damage. But some Boston-based researchers have come up with a low-tech approach to screening these individuals so they can get help.

    By Lela Nargi
  4. Health & Medicine

    ‘Ringing’ in the ears may signal serious ear damage

    A persistent ringing in the ears, also known as tinnitus, has become common in teens — and may point to eventual, permanent hearing loss.

    By Lela Nargi
  5. Health & Medicine

    Milking chocolate for its health benefits

    Researchers figure out how to give milk chocolate the same health benefits as dark chocolate. The secret ingredient is an extract from peanut skin.

    By Sharon Oosthoek
  6. Health & Medicine

    Could toothpaste give heart disease the brush-off?

    Brushing with a toothpaste that dyes plaque green encourages people to remove more of it. This also lowered inflammation, which may cut someone’s risk of heart disease.

    By Kathryn Hulick
  7. Health & Medicine

    Zika birth defects: Concerns spread from head to toe

    Zika infections may trigger problems well beyond babies born with small heads and brains. Scientists have begun linking a range of head-to-toe health ails to the virus.

    By Meghan Rosen
  8. Microbes

    New date for U.S. arrival of the AIDS virus

    A new study shows that HIV started circulating at least a decade earlier than previously realized.

    By Tina Hesman Saey
  9. Environment

    Vaping may put your smile at risk

    As e-cigarette use among teens rises, scientists find that vaping may cause cellular damage to the mouth, gums and teeth. Even the cells’ DNA was affected.

    By Lindsey Konkel Neabore
  10. Genetics

    Human DNA carries hints of unknown extinct ancestor

    A new study suggests people today carry genetic traces of now-extinct species unknown to science.

    By Tina Hesman Saey
  11. Oceans

    Beaches can be a germy playground

    Infectious microbes can flourish on sandy beaches. Scientists are now exploring how to find and monitor these hotspots for pollution that can make vacationers sick.

    By John H. Tibbetts
  12. Brain

    Pain is contagious — at least in mice

    Pain can move from one mouse to another. The trigger may be smell.

    By Laura Sanders
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