BBC journalist Gem O’Reilly was 16 when she was recognized with a coronary heart situation.
Now, 10 years later she’s been signed off to run lengthy distance.
Gem’s situation, if unknown, might probably trigger sudden dying by means of cardiac arrest and he or she will not be alone.
Each week within the UK, 12 younger folks die from an undiagnosed coronary heart situation.
Reporter and producer: Gem O’Reilly
Digital camera: Jamie Moreland & Vince Rogers