Unless you're a vegan freak of nature like Tony Gonzalez, I don't think you can play sports much past your early 30s.
The individual organs follow the same pattern as the whole organism, i.e. they have their period of growth, of stationary, maximum activity and then of aging decline.
I have, since the age of about 2, been a twitchy bundle of phobias, fears, and neuroses. And I have, since the age of 10, when I was first taken to a mental hospital for evaluation and then referred to a psychiatrist for treatment, tried in various ways to overcome my anxiety.
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