From the popular Hyrox to the gruelling Iron Man triathlon, here are the hardest fitness challenges that will test your ...

I've seen Mike Tyson push ups all over the place for the last month or two. But why? Are they really such a fantastic push up ...

Kali Muscle and Big Boy take on the brutal challenge of completing 100 straight burpees, with no breaks and no excuses. The ...

Two moves, 10 minutes, just one piece of kit. There are a lot of benefits, but believe us, you're going to pay for them in ...