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. Author manuscript; available in PMC: 2021 Oct 21.
Published in final edited form as: J Investig Med. 1999 Mar;47(3):141–150.

Figure 2.

Figure 2.

Score on the Morningness-Eveningness Questionnaire vs. circadian phase of the core body temperature minimum (CBTmin) for the 108 subjects. Filled squares: young subjects; open squares: older subjects. A significant correlation was found between morningness-eveningness score and CBTmin when all subjects were considered together. This correlation remained significant when young subjects were analyzed separately, but did not reach statistical significance when the older subjects were analyzed separately (see text for details).