For years, 26-year-old triathlete Noel Mulkey experienced substance use disorder until he found a new outlet: exercise.
triathlon
triathlon
Triathlete Noel Mulkey is turning a dark experience into a force for good
How Chris Nikic became the first person with Down syndrome to complete an Ironman triathlon
Nikic, just 21, finished a 2.4-mile swim, a 112-mile bike ride and a 26.2-mile run.