June 30, 2015, 9:37 a.m. by Jenn Savedge
Scott Jurek is running about 50 miles a day, hoping to complete the AT in 42 days.
June 29, 2015, 3:01 p.m. by Mary Jo DiLonardo
Global research team looks at exposure to mixtures of everyday substances.
June 29, 2015, 1:51 p.m. by Agata Blaszczak Boxe, LiveScience
Weighing yourself each day reinforces good dieting habits.
June 25, 2015, 10:13 a.m. by Rachael Rettner, LiveScience
The U.S. fell from the twelfth happiest country to the twenty-third.