I wish more people, whether or not they believe they're healthy/strong or not, got annual bloodwork and general health checks done. You can't run a complex machine like a human body and never, ever do any analysis to ensure it's running within acceptable levels.

Imagine how much less psychological pain this guy could've been through if he had regular bloodwork enough to let him know that his vitD is getting low and to supplement before he even realized he was "failing".