Hi Beauty,
For most of human history, our days followed a predictable rhythm.
Sunrise.
Daylight.
Sunset.
Darkness.
Today, many of us spend more time under artificial light than natural light.
We wake up to screens.
Work under LEDs.
Scroll through our phones at night.
Watch television before bed.
And our biology is trying to make sense of all of it.
One of the most fascinating things I've been learning is how strongly the body responds to light.
Not just sunlight. All light.
Your brain uses light to determine what time it is.
Those signals influence sleep, hormone production, metabolism, recovery, and much more.
The challenge isn't that blue light exists.
Blue light is a natural part of sunlight.
The challenge is that modern humans are now exposed to artificial blue-rich light for hours after sunset, often without the balancing red and infrared wavelengths found in nature.
That's a completely different environment than the one our bodies evolved in.
This isn't about fear.
It's about awareness.
You start noticing:
- How much time you spend outdoors
- How much time you spend on screens
- How your energy changes throughout the day
- How your sleep responds to your evening habits
Over the coming months, I'll be sharing more about sunlight, blue light, circadian biology, and what I'm learning along the way.
It's one of the most interesting areas of health research I've come across in years.