The Circadian Classroom

The Circadian Classroom

Sunbathing for Dummies: How Morning Light, Midday UV, and Nighttime Darkness Create Resilient, Cancer-Proof Skin

Zaid K. Dahhaj's avatar
Zaid K. Dahhaj
Jul 02, 2025
∙ Paid
77
23
16
Share

Sunbathing gets a lot of press.

Some of us love it and understand its healing power through heliotherapy.

Others believe it’s the single most damaging, skin cancer causing activity.

I would argue that most people think of sunbathing as a reckless activity, one that leads to burns, wrinkles, and cancer. But that’s only true if you misunderstand how the human body was designed to interact with light.

The truth is this that your skin is not a passive surface. It’s an intelligent, light sensing organ governed by circadian mechanisms. When you follow the natural solar cycle.. starting with morning light, progressing to controlled midday UV exposure, and ending with total darkness at night.. you unlock a complete system of repair, resilience, and regeneration.

This article will be a masterclass in breaking down exactly how you should think about the practice of sunbathing, so that it has an incredible impact on your health and quality of life.

The Circadian Classroom is a reader-supported publi…

This post is for paid subscribers

Already a paid subscriber? Sign in
© 2025 Zaid K. Dahhaj
Privacy ∙ Terms ∙ Collection notice
Start writingGet the app
Substack is the home for great culture