Zach Zeiler, from Ida, Michigan, was diagnosed with Hodgkin’s Lymphoma in 2010 at the age of 15 – which saw his weight plummet to just 100lbs. But as the video shows, Zach went on to beat cancer and now weighs nearly 175lbs.
His impressive physique is the result of working out for two hours each and every day – which he began during treatment. And his arm workout is nothing short of impressive. Check it out below