A man from Iceland who underwent the world's first full double arm transplant 16 months ago can now work out at the gym and hug his grandchildren. Felix Gretarsson, 49, had to have his arms amputated after he was electrocuted at work. After decades without them, he convinced a surgeon to perform a double arm and shoulder transplant in a 15-hour surgery in January 2021. He shocked surgeons with his incredible progress and is now able to brush his teeth, walk and throw balls for his dog and hug his kids with his transplanted arms. To build up the muscles in his new arms, he has now started to go to the gym to exercise.