Teenager Michael Walker's failing heart recently found a way to begin beating on its own again in what New York doctors are calling a medical "miracle."
The New York Daily News said doctors at New York-Presbyterian Hospital Columbia are at a loss to explain how the 17-year-old's heart defied the bypass machine assisting it and began beating on its own.
"It's a miracle," cardiac surgeon Dr. Abeel Mangi said. "There's really no other way to put it."
Walker was jogging at his high school last month when he suffered a massive heart attack caused by a rare congenital heart flaw and was only kept alive by the bypass machine and CPR.
The "miracle" occurred while he was waiting for a heart transplant, and doctors later successfully repaired his damaged heart.
The teen's father, William Walker, offered his thanks for the amazing recovery that saved his son's life.
"God turned around, put his hand on my son, and recharged him," he told the Daily News. "If he wasn't a blessed child, I don't think he would have made it through this whole thing."