The World's Strongest Toddler - My Shocking Story

3-year-old Liam Hoekstra has a rare genetic condition called myostatin-related muscle hypertrophy, which increases his muscle mass and reduces his body fat. At first glance, Liam Hoekstra appears to be a fairly typical 3-year-old. He doesn't have any obvious physical attributes that set him apart from other tots and he behaves like many children his age. But when Liam picks up two five-pound dumbbells and waves them around like stuffed animals, or does rapid-fire sit-ups, it becomes abundantly clear that he has an extraordinary gift.