Dr Sara Pugh PhD

How modern indoor living quietly breaks your metabolism, hormones, and energy levels Why light, water, magnetism, and charge matter more than supplements The quantum principles behind cold, heat, sunlight, and grounding 👇👇 👉🏼get.busysuperhuman.com/quantum-2026 Practical ways to restore circadian rhythm, mitochondrial function, and resilience

@prospertarian Yes he was great wasnt he !

@spugh01 We are great! I hope you are too. Just relistend to your Michael Crawford interview. 🙂

There’s a lot of fear around vitamin A toxicity, but here’s what most people are missing Synthetic vitamin A supplements are not natural and may be potentially harmful but that’s only part of the story. Your body doesn’t operate on isolated compounds. Just like vitamin D, vitamin A exists in multiple forms, interacting within a complex, light-driven system. And importantly, we have vitamin A receptors throughout the body. That means this molecule is signaling, regulating, and influencing gene expression in ways most people never consider. Vitamin D is made from cholesterol using UVB light starting in the skin and finishing in the kidneys. The form you supplement? It’s a storage form, not even the active hormone your body actually uses. Vitamin A works the same way, context matters. It’s not just about intake, it’s about how your environment affects it. Here’s the overlooked piece: 
Artificial blue light disrupts vitamin A by causing it to detach from the proteins it’s meant to bind to, turning a beneficial molecule into a potentially harmful one. So don’t blame the nutrient, look at the environment. What actually helps:
 ✅Reduce artificial blue light (especially at night)
 ✅Use blue-blocking glasses when needed ✅Choose warmer, natural lighting (incandescent > LED)
Get daily sunlight exposure to regulate these pathways naturally This is just the beginning A is for Vitamin A. Follow along as I go through the 'Quantum Alphabet'.  My Quantum Health Substack (where  I have lots of free posts that go deepr as well as beginner content. 👇🏼👇🏼👇🏼 @busysuperhuman?r=3gz2kn&utm_medium=ios&utm_source=profile&shareImageVariant=blur" target="_blank" rel="nofollow noopener">substack.com/@busysuperhuma… My Quantum Starter Kit ($29) for those of you new to Quantum Health or want the information all in one place as videos and a slide deck - code Equi for 20% off 👉courses.busysuperhuman.com/the-quantum-st…

Changing your light bulbs might be the simplest health upgrade you’re overlooking. Here’s why👇 Most LEDs are heavy in blue light with zero infrared. That imbalance can disrupt sleep, increase inflammation, and stress your cells. Incandescent bulbs were labeled “inefficient” because they produce heat + infrared… But that “waste” is actually biologically useful—supporting cellular energy and recovery. The sun = blue + red + infrared (balanced) LEDs = mostly blue (imbalanced) ⚠️ Don’t fall for “full spectrum” LEDs — that just means visible light, not infrared.

@AndreLeger Great post !

@spugh01 This is exactly the argument. I wrote about it from a different angle last week. open.substack.com/pub/aleger/p/t…

@BoxingSharp @DrJackKruse @helios_brah @ze_rusty Yes people underestimate how bad blue light is

@DrJackKruse @helios_brah @ze_rusty @spugh01 This guy definitely died from light toxicity and EMFs x.com/WhaleInsider/s…

@prospertarian So great to hear from Logan ! How is your son? I still follow your podcast - it’s exploded

@spugh01 I remember a couple of years ago when I asked you what liberated vitamin A was… oh how time flies. You've been instrumental in my journey. Thanks for all you do. 😉

@VoidMillennia Do you mean as a post or a Substack?

@spugh01 Can u explain more on the different forms of vitamin A?

When NOT to get bloodwork done The story of the lady whose triglycerides shot through the roof How CBC, cortisol, and insulin reveal what your body is doing, not what’s “wrong” A key test people keep missing when assessing metabolic status and efficient use of energy How light and infections have huge effects on common blood tests Read the full post on Substack 👉🏼open.substack.com/pub/drsarapugh… #insulin #bloodsugar

Your doctor might say your insulin is “normal”…But most lab ranges (2–25) include people who are already insulin resistant or with a comprimised metabolism. Optimal is closer to:→ 2–6 µIU/mL→ Ideally 3–5. But triglycerides are a key metric to measure too (I’ve put this in my guide too with ideal numbers) Once insulin is above ~8, your body is compensating.Above 10? That’s dysfunction—even if glucose looks perfect.And it’s not just about carbs, but too many too too often is a problem . my free guide 👉🏼 get.busysuperhuman.com/quantum-glucose. (I’ve updated it with lab ranges for the 2026 version) High insulin is often driven by:→ Poor sleep→ Chronic stress and cortisol → Artificial light at night→ Low thyroid function. I found that adding in local, seasonal carbohydrate sources grown in the UK or where I have travelled to makes a big difference in how well they’re actually used. Then doing the appropriate exercises for me and learning how HRV and NO regulate insulin and blood glucose This isn’t about removing carbs— unless you are on a medical keto diet or you thrive on meat only it’s about matching them to your biology, location, activity and hormone status #insulin #quantumbiology #bloodsugar #carbs #keto

From MRIs to Qi: Testing Ancient Healing With Modern Science Methods 🌞What “quantum health” actually means (and why no one agrees) 🌞My n=1 experiment using MRIs, bloodwork + DNA testing and more 🌞How ancient Daoist practices fit into modern quantum biology open.substack.com/pub/drsarapugh…

@PragmaticNurse Great post!! - Made me take a break from my Substack post and grab some UV !!

Do you want to use a military grade shielding technology to protect yourself against nnEMFs? Get a tan! Now is the time.

We need bright light in the morning and the daytime (high lux) and minimal or dim light in the evening for optimal health, sleep, mood, metabolism and circadian timing (body clock). Thanks Sarah Kliener for this superb concise image! Sarah is doing a free webinar on her MyCircadian App if you are new to light, lux and circadian health sarahkleinerwellness.com/mycircadianapp…

#28 Vital Energy, Trauma, Geomancy, Aliens & Nutrition with Dr. Ralf Otterpohl - Listen here 👉podbean.com/eas/pb-ye7d8-1… ✅Vital energy is crucial for health and happiness. ✅Dietary choices, including the inclusion of healthy fats like DHA, significantly impact mental health. ✅Minerals like lithium and sodium play essential roles in overall well-being. ✅Trauma can block energy flow, affecting personal development. ✅Family entanglements can carry burdens that affect current generations. ✅Previous existences even on another planet may influence present life experiences. ✅Geomancy can help clear negative energies from land and spaces. Sound bites "Vegan diets can be risky for health." "Trauma can block our energy flow."

@shimself What I meant to convey was - when the sun sets at 5pm it’s really hard to mitigate the artificial light when it sets later you have less time stuck in the artifical light before bed time - let me change the phrasing - mabey I should use Ai to help me write !

@spugh01 "clock change when they ‘go forward’ makes it easier in many ways to get less exposure to artificial light in the evening which messes up melatonin, leptin and melanopsin signalling" Why artificial light worse than evening sun?

Why I Flew to Morocco for £40 to Test Sun, Cold Water, Food & Circadian Biology - How Did It Compare To El Salvador? What is Morocco like? Its it safe? Food? Culture? Prices? • What UV exposure can do for vitamin D levels in just one week • My circadian travel protocol for flights (light, fasting, hydration and movement) • How to get strong UVB exposure in winter without flying across the world • Why Morocco has almost no jet lag for UK travellers open.substack.com/pub/drsarapugh… • The health benefits and protocols for contrast therapy (heat + cold + UV) • How cold ocean exposure affects circulation, recovery and metabolism • My 3.5-hour contrast therapy experiment and what happened to my HRV • The real cost of living in Morocco vs the UK and US • Why natural fibres, sunlight and grounding matter for health

Yes it does and some how I missed this and it was under my nose and the property price was very interesting as well as it being in the same time zone as UK and is a progressive country. It has changed a lot since I went in 2004 - it also as far as I know has political stability - but who really knows what goes on There is a huge amount I don’t and nobody knows about UK and it’s politics and other strange things which go on here - not all are bad

@spugh01 Morocco from my experience ticks alot of boxes.

@helios_brah Yes, lots of other idiots who messed up the otoliths in their vestibular systems and gut from high dose aspirin but if people stupid enough to listen to her - not my problem anymore - but glad you shared this

Uber driver takes a wrong turn and you get into a MINOR car crash that your grandmother would survive But youre on 600 mg daily Aspirin "biohacking" And now you die. Because of a minor brain bleed that doesnt stop because youve Aspirin-inhibited blood clotting "no downside"

Which Potion Would You Drink?

Are We Leaving Light Genes Off The List? I have never seen a list of POMC, neuropsin or melanopsin SNPs on a ‘genetic test’. I am pretty certain that there are people who are very sensitive to artificial light and become insulin-resistant or obese faster than others with excess blue light exposure. POMC is tied to UV light and I am sure there are some people, regardless of Fitzpatrick skin type, need more UV than others for optimal health. If these genes were on the list of ‘genetic testing’ it would change the paradigm a lot and help lots of people. It is convenient to keep them off the list as changing light environment or going outside need not be costly