27/09/2025
The Hidden Factor Sabotaging Your Sleep & Metabolism
Did you know that light at night can disrupt your hormones, raise cortisol, and even increase diabetes risk?
Research on over 85,000 people showed that the brighter your bedroom at night, the higher your risk of metabolic issues, even after accounting for diet and exercise.
Here’s why:
Blue light (from phones, TVs, LEDs) blocks melatonin, your sleep hormone.
It can spike cortisol, keeping your body in “day mode.”
This affects blood sugar regulation, recovery, and even weight management.
My toolkit for better nights:
✔️ Blue light blocking glasses after dark
✔️ Sleep mask to make the room pitch black
✔️ No phones in bed
Tiny tweaks like these can mean deeper sleep, better recovery, and more energy the next day.