Lots of studies have found links between e-cigarette use and tobacco addiction, but some warn that those links aren't all that strong.
According to a new study, those who play tackle football before age 12 are at greater risk of cognitive and behavioral problems later on.
Too few new antibiotics are under development to combat the threat of multidrug-resistant infections.
The Secretary of Interior suggested shrinking four monuments and allowing commercial activity on 10 of them.
The University of Hawaii at Manoa used an area near one of the world's largest volcanoes as a proxy for Mars.
Particle air pollution causes northern Chinese people to die about three years before those in the southern region.