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Re:Ask HN: How did you stop drinking? by PaulHoule on Tuesday October 11, 2022 @10:26AM (#33163744)
Exercise is mostly good for your heart but heavy cardio training (say for marathons) can cause problems, see

https://bjsm.bmj.com/content/55/21/1233

My doc told me I should train for an hour a day but not two hours a day.

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