32 rectal temperature recordings (>24hrs, two per participants) collected during a 60-day 6 degrees head-down tilt bed rest study (2nd Berlin BedRest study, BBR2-2).
Background: Cortisol is released upon activation of the hypothalamic-pituitary-adrenal axis, varies across the day, and possesses an underlying diurnal rhythm reactive and responsive to stressors. Whi
