Move of the Week: Dirty Dog

This exercise from Biggest Loser trainer Jen Widerstrom may have a funny name, but it will seriously work your butt, thighs, and core.

Watch This Inspiring Professional Runner Crawl Across the Finish Line of a Marathon

Hyvon Ngetich of Kenya led the women's pack of the Austin Marathon for the first 23 miles, but she fell to the ground as she rounded the corner to the finish.