Mike Tomlin does it all for the Pittsburgh Steelers
After 10 rounds of this sequence, as demonstrated by Emily Skye, you'll be feeling it the next day.
James Harrison 'shoveling' in new Instagram video
It has ultra-short, 15-second rests between spurts of effort, which research shows can lead to an astronomical calorie burn.
More proof that James Harrison is a really strong human
This sure took a painful turn.
In an inspiring performance aboard the USS Midway, the former DEA agent blows away the previous mark.
UFC 205 fighters have been working insanely hard
Fix back pain and improve your performance in the gym -- while never leaving office
This guy has a lot of balance.