“…Though detailed instruction and support were provided, the collection of urine for 24 h may be imprecise if, for example, the collection period is not exactly 24 h or if some voids are not collected. As well, we did not account for participants' menstrual cycle phase, and the diurnal rhythm of cortisol appears to differ during the follicular and luteal phases of the menstrual cycle [29][30][31][32][33]. However, 24-h quantitative measures do not differ between phases [29][30][31][32][33], so this is unlikely to have affected our results.…”