Uncategorized

  1. Humans

    Alcohol-producing bacteria could cause liver disease in some people

    A majority of patients with nonalcoholic fatty liver disease also had gut bacteria churning out medium to high levels of ethanol.

    By Tina Hesman Saey
  2. Humans

    Ancient DNA reveals the first glimpse of what a Denisovan may have looked like

    A controversial technique reconstructs a teenage Denisovan’s physical appearance from genetics.

    By Bruce Bower
  3. Health & Medicine

    1 in 4 U.S. high school seniors has vaped recently — up 4.5 percentage points from 2018

    A 2019 survey finds the number of high school and middle school students who report using e-cigarettes recently continues to grow.

    By Aimee Cunningham
  4. Physics

    A new experiment slashes the maximum possible mass of tiny neutrinos

    The KATRIN experiment suggests that the tiny subatomic particles have masses a minuscule fraction of an electron’s.