Send us Fan Mail This week, I want to explore a simple idea that sits underneath almost everything we do in movement, rehab, performance, and learning: The body can’t access what it doesn’t know. The nervous system won’t use what it doesn’t recognize as available, safe, or trustworthy. And when pain, injury, fear, or perceived threat enters the picture, entire movement strategies can quietly disappear—not because the body is broken, but because the brain no longer sees those options as viable...