In this episode, I explain the science behind limb range of motion and flexibility and how to increase them by using science-supported protocols. Flexibility is crucial for physical movements and can help prevent injuries, decrease inflammation, modulate physical and mental pain, impact exercise recovery speed and even potentially slow the progression of certain diseases. I explain the biology of flexibility, including the specific neural mechanisms that sense stretch and load (i.e., tension) on the muscles and limbs, as well as how specific brain regions like the insula combine those signals to ultimately control limb range of movement. I also provide science-based stretching and “micro-stretching” protocols that reliably improve limb flexibility with the minimum necessary time investment. I review all the details of those stretching protocols: how often to do them, for how long, their timing relative to other exercises, sets, the time between sets, measuring progress and more. All people, physically active or not, should benefit from the information and tools described in this episode. Some Huberman Lab podcast sponsors may have changed, so please visit our website for the current list: https://www.hubermanlab.com/sponsors Social & Website Instagram - https://www.instagram.com/hubermanlab Twitter - https://twitter.com/hubermanlab Facebook - https://www.facebook.com/hubermanlab TikTok - https://www.tiktok.com/@hubermanlab Website - https://hubermanlab.com Newsletter - https://hubermanlab.com/neural-network Articles Force enhancement after stretch of isolated myofibrils is increased by sarcomere length non-uniformities: https://go.nature.com/3tyUfxT Microfluidic perfusion shows intersarcomere dynamics within single skeletal muscle myofibrils: https://bit.ly/3MLJWNV The Effect of Time and Frequency of Static Stretching on Flexibility of the Hamstring Muscles: https://bit.ly/3aKIDRN The Relation Between Stretching Typology and Stretching Duration: The Effects on Range of Motion: https://bit.ly/3aXtpcw A Comparison of Two Stretching Modalities on Lower-Limb Range of Motion Measurements in Recreational Dancers: https://bit.ly/3Hkpy5q Stretching Reduces Tumor Growth in a Mouse Breast Cancer Model: https://go.nature.com/3xLQY0U Insular Cortex Mediates Increased Pain Tolerance in Yoga Practitioners: https://bit.ly/39pLIXd #HubermanLab #Flexibility #Health Disclaimer & Disclosures: https://www.hubermanlab.com/disclaimer