This brutal 11-week fitness challenge has taken over the internet. But critics have called it “ridiculous”, and “dangerous”.

“Just need to catch my breath,” I gasped, like I’d just finished a marathon. I sank gratefully onto a boulder. It took a few ...

Two pedestrians walk on the campus of Tufts University ... session for the school’s lacrosse team appeared to lack ...

In the midst of thousands of Kansans rallying around a challenge to walk or roll a distance equivalent to the length of the state, Sharolyn Jackson believes one goal should ...