Exposure to secondhand marijuana smoke is more strongly associated with viral respiratory infections in children, compared with children who were exposed to tobacco smoke and those with no smoke exposure,...

Estrogen has been thought to play a role in a woman’s risk of developing Alzheimer disease (AD). A new study has taken a different approach to identifying risk factors for AD by examining the association...

Increasing the amount of time schools devote to physical education each week could dramatically reduce the number of children who are doing only minimal levels of exercise, researchers from the University...