The Sistine Chapel in Vatican City might be celestial, but its creator, Michelangelo, one of the most important names in Western art’s history, was far from that. And for a simple reason, which is hygiene. Michelangelo slept with his clothes and boots on, without removing them for days. He avoided showering and even considered it a health hazard. Well, he might have had a point, because he lived until he was 89 years old.