Cystic fibrosis sufferer Evan Scully was told he wouldn't live into his teens but, at 28, he is now he is helping a reigning Olympic gold medallist defend his crown in Rio next year.
The Dunshaughlin native, who runs the Scully Sports Therapy Clinic in Rathoath Co Meath, was diagnosed with the most aggressive form of cystic fibrosis, the double delta f508 strain, when he was just six months old.
He keeps himself very fit and hasn't suffered an infection in 14 years and is about to embark on one of the most exciting adventures of his life.
He is flying to Los Angeles to team up with Algeria's Olympic 1,500m champion from London 2012, Taoufik Makhloufi, as he tries to regain his crown in Brazil next year.
"All I know is that between now and August I'll be in LA, Albuquerque, Kenya, South Africa, Japan, Beijing, Belgium, Doha, South Korea," Scully told the Irish Daily Mirror.
"The World Championships are in Beijing this August so that's what the aim is now.
"But I'll be working with Taoufik until the Olympics in Rio in August 2016."
Evan has previously worked with the likes of Mo Farah and has the drive to succeed.
"I think I have this natural competitive side that mostly works in my favour but it can also be the breaking of me," he added.
"I won't stop until i get what I have in mind. If I don't get it the first time around, I'll just keep going and going.
"I don't just want to be a healthy CF person. i want to be a healthy person."