AMA #14: 2023 Philanthropy, Evening Routine, Light Therapy, Health Metrics & More

In this annual AMA for premium-channel members, Huberman opens by detailing where 2023 research donations went, naming labs at Stanford, Salk, and Columbia studying mindset, intermittent fasting, eating disorders, and TMS. He then answers listener questions on the anterior mid-cingulate cortex and willpower, evening and morning light routines, red light therapy, and which fitness and medical metrics he tracks. He shares his weekly training split, his approach to waking in the middle of the night, strength training without bulk, and full-body MRI scans. He closes with plans for a child-development series and floats a future 24-hour AMA fundraiser.

• Announces a $3-to-$1 donation match for 2024 (Tiny Foundation plus two new donors), making the channel 'major philanthropy.'
  00:05:41
• Recommends Bon Charge dimmable red bulbs for the evening, stressing he has no financial relationship and buys them himself.
  00:17:38
• Endorses the Reveri self-hypnosis app for falling back asleep, citing David Spiegel's voice.
  00:40:01
• Says melatonin doses people take are usually too high and too frequent, often causing mid-night waking.
  00:44:14
• Got a full-body MRI he paid for himself; found a disc bulge and one benign brain white spot, no tumors.
  00:50:31
• Warns a bulldog can cost at least $20,000 a year in medical bills.
  00:55:45
• Floats doing a 24-hour marathon AMA as a sleep-deprivation study and research fundraiser.
  00:59:24

• The anterior mid-cingulate cortex grows when you lean into hard, uncomfortable challenges and atrophies when you avoid them.
  00:07:13
• Bright light for 15+ seconds between 10pm and 4am can dramatically suppress melatonin.
  00:14:29
• Viewing late-afternoon/evening sunlight can offset evening melatonin reduction by about 50%.
  00:15:00
• Viewing sunlight through a window takes about 50 times longer to activate the circadian system than being outside.
  00:19:43
• Red/near-infrared light at ~18 inches in the morning may offset age-related mitochondrial and vision decline in people over 40.
  00:23:21
• Huberman's weekly plan is three cardio sessions (long, moderate, short VO2) plus three resistance days.
  00:32:15
• Glaucoma is the second leading cause of blindness worldwide, after cataracts, and is easily tested.
  00:39:31
• No one hypertrophies permanently from a single set; the 'pump' is just a temporary preview of muscle potential.
  00:47:21
• Studies show a fake 'poor sleep score' can diminish next-day performance even after a good night's sleep.
  00:45:17
• Heavy 1-3 rep training builds strength with little hypertrophy; 6-30 reps to failure drives muscle growth.
  00:47:52

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