Fig. 4.

Individual differences in daily energy metabolism during circadian alignment in Study 1. A) 24 h energy expenditure, B) 24 h respiratory quotient (RQ), C) energy expenditure during scheduled wake, D) energy expenditure during scheduled sleep. Grey square represents average data for 100 lx day, red circle represents average data for 750 lx bright white light day, blue triangle represents average data for 750 lx blue-enriched white light day. Data for the 15 individual subjects are displayed along the x-axis plotted according to the rank order of subjects’ 24 h energy expenditure shown in 5A. (For interpretation of the references to color in this figure legend, the reader is referred to the web version of this article.)