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Huberman Lab

Dr. Glen Jeffery: Using Red Light to Improve Your Health & the Harmful Effects of LEDs

December 1, 2025
Dr. Glen Jeffery: Using Red Light to Improve Your Health & the Harmful Effects of LEDs

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Episode Description

Dr. Glen Jeffery, PhD, is a professor of neuroscience at University College London and a leading expert on how different colors (wavelengths) of light impact cellular, organ and overall health. He explains that long-wavelength light (red, near-infrared and infrared) can enter the body and brain to enhance mitochondrial function and thereby improve metabolism, eyesight, blood glucose regulation, mood, hormones and more. We also discuss how short-wavelength light from LED bulbs can impair mitochondrial health and why balanced, full-spectrum light is essential for health. Dr. Jeffery shares simple yet powerful ways to use natural and artificial light sources to enhance your metabolic function, eyesight and longevity. Show notes: https://go.hubermanlab.com/gwX6N6d *Thank you to our sponsors* AG1: ⁠https://drinkag1.com/huberman Wealthfront*: ⁠https://wealthfront.com/huberman Joovv: ⁠https://joovv.com/huberman Rorra: ⁠https://rorra.com/huberman Function: ⁠https://functionhealth.com/huberma

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