10/08/2026
🚨BREAST CANCER: ITS TIME TO SEE THE LIGHT
A 2016 study found that the brightest neighborhoods at night had 63% higher breast cancer rates than the darkest hoods.
And the effect was strongest in younger women.
Why?
Your circadian system is sharpest when you’re young.
It doesn't miss a photon and shuts down melatonin easier.
And the longer that circadian disruption runs, due to years of bright nights, the more the damage stacks up.
What about older women?
In general, their eyes already filter light worse the older they get. So the signal is weaker and the risk association drops.
Younger women don’t get that “protection.”
So its not just genetics or something in the water or the bad food or no exercise.
It’s something in the night.
Turn your lights off.
Use blackout curtains.
Use blue blockers.
If you want to use light at night, I put together the cleanest, healthiest options that will disrupt your circadian rhythm the least here:
https://www.bluelightdiet.com/blog/nightlights
Protect the younger women in your life especially. Make them use these lights if they use light at night.
Get them a pair of blue blockers as a present. See my favorites at the link in my bio.
Most breast cancer is preventable.
