Summary
Highlights
70% of growth hormone is released during deep sleep. Poor sleep quality not only reduces growth hormone but also spikes cortisol, which inhibits bone growth and causes systemic inflammation.
The body uses natural light signals detected by eyes, skin, and gut to regulate melatonin. Getting sunrise light in your eyes is essential, while artificial light and sunglasses during the day disrupt the hormone production cycle.
To maximize growth, one must eliminate artificial light after sunset, use blue-light-blocking glasses, and maintain a cool, dark environment. Avoiding stimulants and heavy cooked meals before bed prevents energy diversion from repair processes.
Growth hormone peaks in the first half of the night, making a 10:00 p.m. bedtime crucial. Avoiding alarms and ensuring long, uninterrupted sleep cycles are key to physical transformation and height growth.