Hmmm so fit and healthy people like Lisa Curry Kenny get heart problems despite (or perhaps because of) her training and active life. There's no justice in the world, so the important thing is to take lessons from the injustices - in this case, that exercise and healthy living can make you very very sick.
Okay okay that was unfair - it should read "that exercise and healthy living can make you very very sick if it's not part of a balanced lifestyle and diet." Exercise is commendable but please don't overdo it, and remember that balance in all things is far more important for your health.