Not to make light of the sorrow his family must be feeling, but just sayin' ...

personally, i just follow the science, and my doctor’s advice

58-year-old film director’s cause of death revealed: heart attack

Vallée was a health enthusiast, who abstained from drinking, worked out constantly and practiced Wim Hof’s extreme breathing methods, which involve holding one’s breath for long periods of time, often in frigid environments.

And this is a bit prophetic: