Let me start by saying, not a single professional athlete on the planet is healthy. Is it healthy to put that much stress through your knee every time you jump onto a high jump bed? Or the amount of physical pain you endure training for an Olympic 10,000m? Or bending your arm into all sorts of wacky positions to ping a javelin 90m? None of this, in the long run will make you any healthier. It does however mean, that we, as athletes, are the fittest people on the planet, and this is a distinction…