Artificial light at night is the metabolic poison nobody warned you about. In Part 1 of this two-part series, Dr. Alan Bradford breaks down what happens when you flip on the lights after sunset.

Timestamps:

00:00 Welcome / Intro

00:46 Artificial Light at Night: The Overlooked Toxin

02:44 Melatonin and Cortisol: Opposing Hormones

04:18 How Light Shuts Down Melatonin (the SCN)

05:51 Light as Low as 8 Lux

06:25 Screens, Blue Light, and Mixed Signals

08:56 Melatonin, Mitochondria, and SIRT3

11:13 Melatonin, Catalase, and Cancer Cells

14:41 Blue Light Isn't the Villain — Timing Is

15:36 What Modern LEDs Get Wrong (the 480 nm Band)

17:53 Four Things You Can Do Today

19:07 Dimming Your Home & Blue-Blocking Glasses

22:04 Sleep Masks and Dark Bedrooms

23:27 Night Shift Work: A Probable Carcinogen

24:22 Next Week: Part 2

Melatonin and cortisol are supposed to work in opposition: cortisol peaks in the morning, melatonin rises at night. But the moment artificial light hits your eyes, your suprachiasmatic nucleus — the body's master clock — tells your pineal gland to shut melatonin production down. Research shows light as low as about 8 lux, roughly half a typical night light, starts that suppression. A tablet screen is about 100 times brighter than the full moon. That matters, because melatonin signals your mitochondria, supports SIRT3, and fuels antioxidant defense, while in cancer cells it depletes catalase and pushes those cells toward apoptosis. Dr. Bradford also explains why blue light isn't the villain — you need it in daytime — and why modern LEDs cause problems by over-emitting 430 to 450 nanometers while omitting the 480 nanometer band. You'll get real, actionable steps: no screens one to two hours before bed, dim household lights after sunset, quality blue blockers, automated dimming, and a solid sleep mask. Plus a sneak peek at next week's guest. Cutting through the medical BS, one light switch at a time.

For over 60 years, cholesterol has been labeled public enemy #1. Millions of Americans are told their numbers are “too high” and are handed a lifetime statin prescription without ever being told what cholesterol actually does in the human body—or how flawed standard testing really is.

Timestamps

00:00 Trust in Medicine is broken

02:47 Sugar versus fat

04:42 Changing cholesterol targets history

06:31 Standard cholesterol blood tests

09:23 LDL types and extra markers

11:52 Triglycerides HDL and sugar

14:02 Why cholesterol is useful

20:11 Resources book and final correction

In this episode of Think Well, Do Well, Dr. Alan Bradford breaks down the real history and biochemistry of cholesterol. We expose the cherry-picked data behind Ancel Keys’ famous Seven Countries Study, the secret sugar industry payoff that framed dietary fat, why your standard lipid panel is running on an outdated math equation (the Friedewald formula), and why your body desperately needs cholesterol for brain health, sex hormones, and cellular signaling.

In this episode, we cover:

• The Seven Countries Study & The French Paradox: Why Ancel Keys ignored data from 15 countries to push the low-fat narrative.
• Project 226 & The Harvard Sugar Payoff: How the sugar lobby funded research in the 1960s to shift the blame away from sugar onto fat and cholesterol.
• The Moving Goalposts: How “normal” cholesterol dropped from 260 mg/dL to under 200 mg/dL—turning healthy adults into patients overnight.
• The Friedewald Formula Flaw: Why your standard calculated LDL may be artificially elevated if you are lean and metabolically healthy.
• Golf Balls vs. Beach Balls: Why particle size (small dense vs. large buoyant LDL) and oxidation matter far more than your total number.
• The Real Villain (Sugar → Triglycerides): How excess glucose and fructose drive fatty liver and metabolic dysfunction.
• Why You Need Cholesterol: The essential raw material for Vitamin D synthesis, testosterone/estrogen production, brain function, and cellular “lipid rafts.”
• Actionable Takeaway: How to calculate your own Triglyceride-to-HDL ratio at home to evaluate your real metabolic risk.

🔗 Show Notes, Research Studies & Video Episodes: Visit ThinkWellDoWell.com for full references, research links, and show notes from today’s episode.

📖 Recommended Reading Mentioned:The Great Cholesterol Myth by Jonny Bowden, PhD, CNS, and Stephen Sinatra, MD.🔔

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Do you feel physically exhausted by the end of the day, yet find your mind racing the moment your head hits the pillow? You aren’t just “stressed”. You may be dealing with cortisol dysregulation.In this episode of Think Well, Do Well, Dr. Alan Bradford breaks down the “Goldilocks hormone.” Far from being a villain, cortisol is a necessary component of your health, but only when it’s released at the right time in the right amounts.In this episode, you’ll learn:

• The Cortisol Rhythm: Why your morning peak is vital and why evening spikes are stealing your sleep.
• The Metabolic Trap: How chronic cortisol shifts your body into a “survival” state, promotes visceral belly fat, and fuels insulin resistance.
• Testing Limitations: Why a standard “morning blood draw” often misses the full picture of your adrenal health, and why serial saliva/urine testing (like the DUTCH test) provides a clearer roadmap.
• The “Wired and Tired” Fix: A simple, zero-cost breathing technique you can use anywhere to manually shift your nervous system from “fight or flight” back into “rest and digest.”

If you’re tired of the “white coat” approach that ignores your symptoms, it’s time to look at the data behind your daily rhythm.Resources mentioned:Visit ThinkWellDoWell.com for more episodes and resources.Check out last week’s episode on Insulin and Diabetes markers.