Introduction: What's outside our head alters what's inside -- The laughter club : the physical nature of emotion -- Act early, think better later -- Learn by doing -- Don't just stand there : how moving sparks creativity -- Body language : how our hands help us think and communicate -- Shoes, sex, and sports : using our body to understand others -- Tearjerkers : empathizing with others -- The roots of social warmth -- Movement : how exercise enhances body and mind -- Buddha, Alexander, and Perlman : using our body to calm our mind -- Greening the brain : how the physical environment shapes thinking -- Epilogue: Using your body to change your mind.