Most people think exercise means effort — sweat, intensity, muscle fatigue.But that’s only half the story.In this talk, I explore why the body requires two fundamentally different kinds of stress:Yang training for muscle.& Yin training for connective tissue and bone.Two modalities. Two different targets in the body.We’ll look at:• Why joints need Yin stress• Why Yin stress is not laziness• How connective tissue adapts• The science of stress and regeneration• Where Daoist philosophy meets modern anatomyYin stretching is not “lazy peeps workout.”Huffing & puffing is not the whole picture.Health requires both.