We’re only just waking up to the benefits of sunlight and red light for mitochondrial health, lowering blood glucose, and potentially treating Parkinson’s disease and cancer.Dr. Glen Jeffery is at the leading edge of this research. We discuss:- Health benefits of sunlight and red light- Harmful effects of blue light & LEDs- In the 2nd half of the podcast, I ask him rapid fire practical questions that everyone wants to know about light, ranging from how much sunlight should one get to what time of day is best for infrared light exposure. Episode Show Notes: https://livelongerworld.com/p/gjefferyFind me: https://x.com/aasthajs TIMESTAMPS: 0:00 Intro0:59 Light impact on public health3:08 Light research is understudied, mitochondria is impacted by light6:05 Red and blue light impacts on mitochondria8:25 Benefits of red light - wound healing, lower glucose15:09 Are there downsides to red light?16:59 Does time of day impact red light benefits?22:05 Red light and cancer26:00 Blue light is making you pre-diabetic37:46 n=1 light experiments39:22 Mitochondria & Longevity46:21 “Sunlight offers a unique package”Rapid fire questions:53:40 Is sunlight good enough for red light?55:10 How much sunlight do we need?56:07 When should you get sunlight?56:55 Should you worry about afternoon sunlight?58:57 Can you get sunlight on cloudy days?59:38 Does sunscreen mitigate benefits of sunlight?1:00:12 Should you not wear caps and sunglasses in sunlight1:01:43 Clothing and sunlight1:05:52 Sunlight through window?1:06:16 Are blue light blocking glasses helpful? (see 1:19:31 for more context)1:08:17 Do Artificial sunlight lamps work?1:08:51 What wavelength red light is the best?1:10:56 Time in front of red light device1:12:41 Body exposure to red light1:15:37 Lighting at home at night1:19:31 Differences in blue light for mitochondria vs. circadian biology1:24:18 Stop using LEDs1:25:24 Does light impact the bioelectrics of the mitochondria?1:26:55 Mitochondria in melatonin mop up ROS1:31:29 Benefits of fire light?1:35:33 Open questions on light and health1:37:28 Support Live Longer WorldAASTHA, LIVE LONGER WORLD: X: https://x.com/aasthajs Newsletter: https://livelongerworld.com/ Instagram: https://www.instagram.com/aasthajs/ DR. GLEN JEFFERY: Bio page: https://profiles.ucl.ac.uk/7465-glen-jeffery/publicationsALSO WATCH:- Keto & Metabolic Therapy for Cancer | Dr. Thomas Seyfried: https://open.spotify.com/episode/7tYdjcJ3G4tqbAx9Z6Bix2?si=rHlCwLVqQHqiOB7yTVBtgQ