At 49, Stefaan Engels ran 365 marathons in 365 days. When he was 55, he ran 100 marathons in 100 days. A group of researchers studied Engels to determine what makes him so extraordinary.
At 49, Stefaan Engels ran 365 marathons in 365 days. When he was 55, he ran 100 marathons in 100 days. A group of researchers studied Engels to determine what makes him so extraordinary.
At 49, Stefaan Engels ran 365 marathons in 365 days. When he was 55, he ran 100 marathons in 100 days. A group of researchers studied Engels to determine what makes him so extraordinary.
At 49, Stefaan Engels ran 365 marathons in 365 days. When he was 55, he ran 100 marathons in 100 days. A group of researchers studied Engels to determine what makes him so extraordinary.
At 49, Stefaan Engels ran 365 marathons in 365 days. When he was 55, he ran 100 marathons in 100 days. A group of researchers studied Engels to determine what makes him so extraordinary.