Static stretching for 30 seconds, performed 5+ days weekly, increases flexibility more effectively than ballistic or PNF methods—and surprisingly, low-intensity stretching at 30-40% effort outperforms higher-intensity approaches. This episode explains the neurobiology of flexibility, including motor neurons, Golgi tendon organs, and von Economo neurons, plus protocols for maximizing range of motion while minimizing injury risk. Static stretching holds of 30 seconds, performed 3 sets per muscle group at least 5 days weekly, produce the most significant long-term improvements in limb range of motion compared to ballistic or PNF protocols.