SammyArmstrong Profile picture
Aug 20, 2025 15 tweets 6 min read Read on X
Steven Bartlett just hosted the world’s top critical care physician.

Dr. Roger Seheult revealed:

• A habit that cuts heart disease risk by 40%
• A common mistake as deadly as smoking
• A 15-minute fix to reboot your cellular energy

His 10 most shocking revelations: Image
1. A dying 15-year-old was saved by sunlight (not medicine)

He had leukemia. A flesh-eating fungus destroyed his lungs.

Doctors gave him 2 days to live. His dying wish: Go outside.

After 5 days of sun exposure, the infection vanished 60-70%.

He walked out alive.
2. Sunlight creates melatonin inside your cells (not just your brain)

Infrared light penetrates 8cm into your body.

It triggers mitochondria to make cellular melatonin, which protects cells.

Without it, mitochondria overheat causing diabetes, dementia, heart disease.
3. Avoiding sun is as dangerous as smoking

Swedish researchers tracked 30,000 women for 20 years.

Women who avoided sun had the same death rate as smokers.

The finding was so shocking they repeated it.

Richard Weller confirmed with 400,000 UK subjects.
4. Studies show hospital beds by windows discharge patients 4 days faster

Patients closer to windows heal faster, need less medication, report less pain.

We used to build hospitals with verandas for sun therapy.

Now we lock patients in windowless rooms.
5. Forest Bathing 2x your healing light exposure

Trees reflect infrared light back at you. (amplify it)

They also release phytoncides (healing compounds you breathe in).

Japanese CEOs tested this. Their natural killer cells jumped 50%.

Effect lasted 7 days from one walk.
6. People using saunas 4-7x weekly have 40% less cardiovascular death.

Saunas mimic fever to supercharge your immune system

When you heat your body to 38°C, interferon production jumps 10-fold.

This kills viruses naturally. Cold plunge after keeps heat in longer
7. Red light therapy actually rebuilds your mitochondria

Glenn Jeffrey at UCL proved 670nm red light penetrates skin and reactivates dying mitochondria

15 mins improved eyesight 25% and fixed glucose metabolism.
8. Your bedroom needs cave-like darkness for melatonin

Even tiny LED lights (clocks, chargers) shut down melatonin production completely.

Blue blockers help but aren't enough - light still leaks in.

"Dark days and bright nights" literally increase death rates.
9. Modern LED bulbs are poisoning your sleep.

Old incandescent bulbs gave full spectrum light (including invisible infrared that heals).

"Efficient" LEDs only emit blue.

For the first time ever, humans get blue without red. Your cells are starving.
10. COVID proved sunlight beats vitamin D supplements

High vitamin D predicted survival. But supplements didn't work.

Dr. Seheult took patients outside instead.

One went from 35L oxygen to discharge in 5 days.

Brazilian infrared jackets cut hospital stays by 33%.
Bonus: Your mitochondria lose 70% of their power as you age

This is why you feel tired.

Your cellular batteries are running at 30% capacity by age 60.

This causes every chronic disease: diabetes, dementia, heart failure.

But 15 minutes of infrared light resets them daily.
Longevity isn't about one magic bullet.

Dr. Seheult's "NEW START" framework is the blueprint:

N - Nutrition
E - Exercise
W - Water (including hydrotherapy)

S - Sunlight
T - Temperance (avoiding toxins like smoking and excess alcohol)
A - Air (fresh, clean air)
R - Rest (nightly sleep + weekly rest)
T - Trust (faith/spiritual practice)
Thanks for reading!

If you found this useful, follow me @SammyRArmstrong for more health insights.

Repost for your community:
Video/Image Credit:
Vitamin D Expert: The Fastest Way To Dementia & The Big Lie About Sunlight!

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More from @SammyRArmstrong

Jan 30
Dr. Peter Attia & Dr. Rhonda Patrick recently unpacked one of the most misunderstood debates in longevity science.

After years of low- vs high-protein arguments, they explained what actually matters for living longer and staying functional.

Their 12 key insights: Image
1. Longevity science was built on animal models, and they misled us.

Most protein-restriction data comes from mice and worms.

They live in sterile environments.
No infections. No injuries. No hospital stays.

Humans don’t age like that. Image
2. Humans don’t die the way lab animals do.

Lab animals mostly die from:
• lymphomas
• artificial cancers

Humans mostly die from:
• heart disease
• dementia
• frailty
• falls
• loss of independence

Muscle loss matters far more in humans.
Read 16 tweets
Jan 28
Cillian Murphy is almost 50 years old.

And he looks better than most men in their 30s.

His secret? No crash diets or extremes.

Just a repeatable system he’s followed consistently for years.

Here’s the diet, training, and habits that keep him that way: Image
Murphy doesn't chase extreme transformations.

He focuses on staying slim with defined muscle.

His goal: look good, feel strong, stay consistent.
His week targets different muscle groups each day.

Monday: chest and triceps.
Tuesday: legs and calves.
Thursday: shoulders and traps.
Friday: back and biceps.

But there's one thing he does after every session:
Read 14 tweets
Jan 22
The most valuable employee isn’t your top performer.

It’s the person most teams overlook.

Their impact stays invisible until everything breaks.

Here’s how to spot them: Image
This framework comes from a story Simon Sinek shares after working with the Navy SEALs.

He asked them one question:

“How do you choose who belongs on SEAL Team Six?”

Their answer was simple:
They drew a graph with two axes:

Performance and Trust

Most companies measure one obsessively and ignore the other.
Read 12 tweets
Jan 6
9 tips to build a stronger mind and memory

(from a Harvard-trained neuroscientist): Image
Dr. Lisa Genova says: Stop fearing forgetting.

A meeting. A name. An actor from a TV show.

99% of everyday forgetting isn’t a memory problem, it’s human biology.

Fear makes memory worse. Understanding makes it better.
1. Train attention deliberately.

Memory starts with attention.

Pause for 1–2 seconds when you place objects or receive information.

If you don’t notice it, your brain can’t store it.
Read 14 tweets
Jan 3
Dr. David Sinclair is one of the world's leading longevity scientists.

In a conversation with Dr. Huberman, he broke down what actually drives ageing at the cellular level.

His 10 important insights on slowing, and potentially reversing, aging: Image
1. Ageing is not caused by DNA damage alone.

It's caused by loss of cellular information.

Your DNA sequence mostly survives.

What degrades is the system that tells cells which genes to turn on and off.
2. This loss of information happens in the epigenome.

The epigenome is the instruction layer that keeps a skin cell a skin cell, and a neuron a neuron.

With age, those instructions become scrambled.

Cells slowly forget what they're supposed to be.
Read 13 tweets
Dec 31, 2025
Andrew Huberman just hosted world’s leading neuroscientist.

She revealed what emotions actually are, how they’re constructed, and how the brain uses them to guide behavior.

Her 10 key insights: Image
1. There is no dedicated “emotion system” in the brain.

Fear, anger, joy, and sadness don’t live in specific circuits.

The same brain networks are used for emotion, perception, decision-making, and movement.
2. Emotions are not reactions.

They are predictions.

Your brain is constantly guessing what’s happening and preparing your body to act, before you’re conscious of it.

Emotion is the brain’s best guess about what to do next.
Read 14 tweets

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