[jdietrich]

Counting your steps is unlikely to destroy your life, but a lot of people do suffer serious harms due to behaviours like compulsive exercise and orthorexia. Obsessive-compulsive behaviour around exercise often overlaps with anorexia nervosa, which has the highest risk of mortality of any mental disorder (~5% at 10 years). There is a surprisingly fine line between compulsive health tracking and a life-threatening eating disorder.