A 6‑year‑old boy in the United States, born with just 'half a heart', has startled the doctors and his family by completing his first triathlon.
According to Daily Mail, Jack Foley, who lives in Long Island, New York, was born with a rare condition that caused half of his heart to stop developing while his mother was pregnant.
He has hypoplastic left heart syndrome, a birth defect which affects fewer than 1,000 babies in the United States every year.
In Jack's case, the left side of his heart was completely undeveloped.
Last month, he completed the Long Beach Children's Triathlon, that saw him swim the 25‑yard length of a pool, bike 475ft around a park and then run the 500ft distance around a baseball diamond.
Little Jack had to undergo three surgeries to become normal, which doctors did not expect at all.
