However, we observed a glycine-induced increase in the neuropeptides arginine vasopressin and vasoactive intestinal polypeptide in the light period. Although no alterations in the circadian clock itself were observed, our results indicate that glycine modulated SCN function. Thus, glycine modulates certain neuropeptides in the SCN and this phenomenon may indirectly contribute to improving the occasional sleepiness and fatigue induced by sleep restriction.

Glycine

Health conditions analyzed in this study

Functions related to this study

Sleep quality

1 supplement Slightly Positive Glycine

---

Body systems related to this study

Nervous System

1 supplement Glycine