The Light Diet

08/03/2026

https://www.skool.com/the-crd-challenge-4364/about

How different could life be if you felt healthier and happier as a result of living in rhythm? Join The CRD Challenge (at any time) and find out! 🙂

02/03/2026

https://www.youtube.com/watch?v=tg9c6shuazI&t=4s

👉 Is Light the missing piece in modern metabolic disease?!In Episode 82 of the Fitness Wisdom Podcast, I am joined by the legendary Dr. Jack Kruse to explai...

14/02/2026

Since I was a teenager I had struggled in winter, experiencing excessive tiredness and low mood. A specific instruction lifted the gloom

09/02/2026

https://pubmed.ncbi.nlm.nih.gov/40120965/

This is the first study to demonstrate superior cognitive benefits of outdoor, compared to indoor, physical activity. The overarching finding of this investigation is that physical activity performed outdoors significantly improves cognitive function more than when performed indoors, suggesting a sy...

20/12/2025

New research publidhed only a few days ago shows natural daylight during the workday significantly improves glucose control, boosts fat oxidation, and strengthens our internal clocks — especially in people with type 2 diabetes!

In a randomized trial, participants exposed to real daylight through windows spent more time in a healthy glucose range and shifted their metabolism toward burning more fat compared with constant artificial lighting.

The study also found that daylight exposure changed muscle clock rhythms and metabolic markers, highlighting how powerful natural light is for metabolic health and circadian regulation.

👉 Want the science behind how light, mitochondria, redox, and metabolism are connected, and how to use it for better health? Join me on Patreon: patreon.com/drsara 💡✨

https://www.sciencedirect.com/science/article/pii/S1550413125004905

Dr Sara - Habits for Health

24/11/2025

22/11/2025

Dr Catherine Clinton's website: www.drcatherineclinton.comYou can pre-order Dr Catherine's book Optimize and get instant access to her Unlocking Your Quantum...

13/11/2025

11/11/2025

https://www.youtube.com/watch?v=akIRv1Zuizk

The Amazing Health Benefits of SUNLIGHTSunlight isn’t just warm and comforting—it’s essential for your health! ☀️ While we often hear about the risks of sun ...

08/11/2025

You don’t have a “slow or sluggish metabolism.”

You have a mistimed one thats has lost its sense of “when you are”.

Your fat isn’t just storage that sits there to annoy you — it’s a light-reading organ that responds to the light you’re directly under.

Inside your fat cells lives a little protein called Opsin3, a blue-light sensor that literally sees light through your skin in your subcutaneous fat.
When unpolarised morning blue sun light hits your skin:

→ Opsin3 sends a signal straight to your hypothalamus, the part of your brain that runs your energy and appetite rhythms.

That signal says: “It’s daytime. Make energy available, start running fats through the TCA cycle and beta oxidation pathways.

But when blue light hits your skin at night — from screens, LEDs, or indoor lighting — that same pathway gets confused. At night your opsins shouldnt be seeing any blue light.

Your body hears: “It’s danger time. Save everything, we don’t know when we are or where we are or what we have on board so hoard everything”

You go into fat storage mode. Appetite up. Energy down and then you wonder why you’re lacking energy in the morning.

The new Nature Communications study just proved this:
When scientists removed that light sensor (Opsin3) from fat cells, the entire metabolic rhythm collapsed.

Energy metabolism plummeted
Appetite shot up, hunger increased.
Body temperature dropped
The brain’s timing system went off course and if the brain doesnt know “when” it is, the rest of the body loses sync too.

Eyes closed didn’t matter — the skin’s light exposure alone controlled the brain’s metabolic clock. This aspect is critical to understand.

Your skin alone can sense the time of the day.

You weren’t overeating or had poor food control.
You weren’t “broken.”
You were just inputting the wrong light code

✨ Fix the timing → fix the signal → fix the metabolism.

Join my patreon page for more insights and practical takeaways: patreon.com/drsara

08/11/2025

Latest research on sunlight and its benefits for eyesight from leading authority Professor Glen Jeffery shows that even through clothing, light penetrates deep into the body and improves visual functioning.
Start by building up your tolerance to light by spending time outdoors early morning and taking regular sun breaks during the day - great for eyesight and health. It's free, easy, accessible and necessary.

Long wavelength red light that can extend beyond the human visual range penetrates deeply through biological tissue. Exposure to these longer wavelengths improves mitochondrial function and ATP production. This can translate to improved ...