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Re:Ask HN: What bits of fundamental knowledge are productivi... by vorpalhex on Thursday March 31, 2022 @02:27PM (#30870624)
I don't love the marketing "feel" of this source but it is a good and comprehensive guide on what failure means in a lifting context: https://athleanx.com/articles/should-you-train-to-failure

You don't "train your body to fail". You may be training bad form - and form failure is failure.

Re:Ask HN: What bits of fundamental knowledge are productivi... by minimoose on Thursday March 31, 2022 @07:02PM (#30873223)
That's great if you're in a body building competition, but you're training to have a heart attack at 65.