From running this year's London marathon in a 25kg weighted vest to conquering the gruelling 246km Spartathlon, Vassos is always looking for new challenges to push him out of his comfort zone. We find out why - along with what it took to run a marathon with 25kg on his back, how he pushed through the hardest moments of the Spartathlon and why he never wears underpants to work!  If you're enjoying the show, please do give us a 5 star review so we can reach even more people. Follow us on Instagram and YouTube: @5mileseasy