Topic Image Rail

E. coli K12 bacterium

LOSS OF APPETITE  Experiments show that helpful gut bacteria like this E. coli K12 produce proteins that could influence the appetite of mice and rats.

women and children

EXTRA BABIES  Roundworms may act as a fertility aid: Tsimane women in Bolivia infected with the intestinal parasites may have more children than uninfected women. 

ESSENTIAL ELEMENT  Brains and testes both require selenium, a nutrient people get from such foods as fish, organ meats and plants grown in selenium-rich soil. Mouse studies show that when the element is in short supply, the testes and brain compete. 

Subscribe to RSS - Health