Her study found the glymphatic clearance was mediated by a hormone called norepinephrine and happened almost exclusively during the NREM sleep phase. But it only worked when sleep was natural. Anesthesia and sleeping pills shut this process down nearly completely.
It’s a natural hormone brain produces that signals to the body that it’s zzz time.
I love it for bedtime and it helps my autoimmune shit. Glad it’s not brain bad.
Aside from possibly becoming a dependency, I’d imagine it doesn’t interfere with sleep quality. It’s what builds up in your body to make you sleepy/fall asleep.
Too much might keep you groggy in the morning though.