Uncategorized

  1. Genetics

    Here’s why wounds heal faster in the mouth than in other skin

    Wounds in the mouth heal speedily thanks to some master regulators of immune reactions.

    By Tina Hesman Saey
  2. Planetary Science

    Mars (probably) has a lake of liquid water

    A 15-year-old Mars orbiter has spotted signs of a salty lake beneath the Red Planet’s south polar ice sheets.

    By Lisa Grossman
  3. Health & Medicine

    Lowering blood pressure may help the brain

    Aggressively treating high blood pressure had a modest positive effect on the development of an early form of memory loss.

    By Aimee Cunningham
  4. Tech

    Readers share their experiences with DNA ancestry tests

    Readers delighted in learning about Emmy Noether, and asked about autonomous taxis and how the first Americans may have arrived via coastal routes.