Good
Walking Roundup
Moderate exercise helps lower the risk of mental impairment in older people.
Doping Sensor
Development of a handheld device for detecting illegal steroids in blood
Genes and Sex
DNA analysis shows that fewer males than females have reproduced over evolutionary time.
Malaria Roundup
Getting ideas for drugs from watching what sick chimps eat, and a compound that kills mosquito …
Antibacterial Sludge
The antibacterial compound triclocarban is found in organic sludge used as fertilizer.
Depression Circuit
People with a history of depression have an overactive brain circuit triggered by dips in serotonin.