Study protocol and rationale for a prospective, randomized, double-blind, placebo-controlled study to evaluate the effects of Ashwagandha (Withania somnifera) extract on nonrestorative sleep

本研究方案及理论依据旨在开展一项前瞻性、随机、双盲、安慰剂对照研究，以评估南非醉茄（Withania somnifera）提取物对非恢复性睡眠的影响。