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Cavalheiro BG, Shah JP, Randolph GW, Medina JE, Tufano RP, Zafereo ME , Hartl DM, Nixon IJ, Guntinas-Lichius O, Vander Poorten V, Lpez F, Khafif AH, Owen RP, Shaha A, Rodrigo JP, Rinaldo A, Mkitie AA, Silver CE, Sanabria A, Kowalski LP, Ferlito A

Sleep Architecture and Delta-Wave Promotion: In rabbit, rat, cat, and limited human EEG studies, intravenous or intracerebroventricular DSIP administration significantly increased total sleep time, prolonged slow-wave sleep (SWS) duration, increased delta-wave power, and reduced sleep latency without altering REM sleep proportion

If your body changed soon after a new supplement entered the picture, its reasonable to treat that as a clue, not a coincidence to ignore

Borck, P