Dr. John La Puma: Why Being Indoors Is Aging You Faster (And the 17-Minute Morning Fix) | #151

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You only build bone during deep sleep, and only if you get enough of a growth hormone spike to make it happen. As someone who has spent her career fighting osteoporosis, I had never connected those dots that clearly before. Morning light, deep sleep, and bone density are part of the same biological chain. That alone is worth the listen.

This week, I am joined by Dr. John La Puma, the originator of culinary medicine. After reviewing over 2,200 studies for his new book, Indoor Epidemic, his conclusion is both sobering and actionable: we are spending 93% of our lives indoors, and our biology is paying for it in ways most of us cannot even perceive. Fatigue. Brain fog. Disrupted sleep. Accelerated aging. And we keep reaching for supplements and prescriptions when the answer is often just outside the door.

What we cover:

- Why 93% of our time indoors is a biological emergency quietly aging us faster from the inside out.

- How 10 to 15 minutes of morning light resets your circadian clock and primes your body for deep, restorative sleep.

- Why screen light within 30 minutes of bedtime drops melatonin by 20%, no matter what else you did right.

- How deep sleep triggers the growth hormone spike your body needs to build bone, making it a frontline tool against osteoporosis.

- Why green exercise feels 20% easier and drops cortisol by 21% when done in a place of your choice.

- What digital obesity really means and why too many pixels burn out your brain the same way too much sugar burns out your metabolism.

- How one hour of gardening a week can lower hemoglobin A1C by 0.5%, roughly equal to a starting dose of metformin.

- What the Louisville Green Heart Study found, including a 22% drop in CRP, when greenery came to a community.

- Why two to five intentional hours outdoors each week can give you up to five years of health span back.

About Dr. John La Puma:

Dr. John La Puma is an academic clinician, trained chef, and organic farmer recognized as the originator of culinary medicine. He runs a certified organic educational farm in Santa Barbara and led the first CME course in the country teaching physicians to use nature as medicine. Indoor Epidemic is his distillation of 2,200 studies into a practical guide for reclaiming your biology.

Connect with Dr. John La Puma:

Website: https://www.drjohnlapuma.com/

Instagram: https://www.instagram.com/johnlapuma/

Timestamps

00:00 Intro

01:30 Culinary Medicine, Organic Farming and the Origin of a Field

03:30 The Indoor Epidemic: Why 93% Indoors Is a Biological Emergency

07:00 How 10 to 15 Minutes Resets Your Entire Biology

11:00 Screens, Melatonin and the 30-Minute Rule Before Bed

13:30 How Your Brain Cleans Itself During Deep Sleep

17:00 Why Over 50% of Your Genes Run on a Body Clock

20:00 20% Less Effort and a 19% Reduction in Mortality

24:00 Digital Obesity and What Ultra-Processed Time Is Doing to Your Brain

28:00 Indoor Air, Toxins, Carbon Dioxide and the Invisible Cognitive Drain

32:00 Chronic Inflammation, Telomere Shortening and Premature Aging

34:00 Greenery, CRP and Cardiovascular Health

38:30 Gardening, Hemoglobin A1C and the Metformin Comparison

41:00 Deep Sleep and Bone Building

44:30 The Biggest Barrier to Change and Why Knowledge Comes First

46:30 Two to Five Hours Outdoors a Week Can Add Five Years to Your Health Span

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