Spot on, Homer! Hard physical work is very good in balancing any other type of work. Lumbering, chopping firewoods, digging, shoveling snow... Anything you must concentrate into enough to avoid injuring yourself. I prefer organic jobs such as those mentioned, but I've learned some people reach the same state of brain resetting by off road motorcycling/snowmobiling. Of course it works the other way around, too. A truck driver may like miniature building or making lace (actually that was a very popular side job for our south-west coast sailors during the sailing ships era!). Playing AH is good, too.
Another warning: A true perfectionist may even try to be the best in suffering and stressing and being sick!