After 10,000 miles, 16 countries and 352 days of back-to-back marathons, Russ Cook, aka the Hardest Geezer, has finally finished running the length of Africa.
Throughout his incredible journey, Russ has no doubt inspired many to dust off their trainers and start running.
But if the idea of even jogging down the street seems daunting, the notion of tackling an ultramarathon might seem totally impossible.
Surprisingly, top sports scientists and athletes say that you could actually get in shape for