How Sleep Affects HGH Production (and How to Optimize It)
I want to show you the single most alarming number I’ve come across in hormone research. In a study of 149 healthy men aged 16 to 83, deep slow-wave sleep made up 18.9% of the night in guys aged 16–25. By ages 36–50, that number had fallen to 3.4%. That’s not a decline. That’s a…
