The Biggest Myth in Sport: Why “No Pain, No Gain” Gets the Evidence Wrong

If pain proves that training is working, does more pain always mean more progress? The phrase “no pain, no gain” sounds motivating, but it treats one sensation as a complete measure of success. This section examines the central question: does pain prove that training is effective, or can it warn that something is wrong? The evidence points to a more careful answer based on the type, amount and context of challenge.