Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Comparison of circadian phase and phase angle measures between DSPS and control groups. Mean times of 2 circadian phase markers, dim-light melatonin onset (DLMO), and core body temperature (CBT) nadir, are shown in the top panel. Four phase angle measures were calculated as the difference between a phase measure, DLMO or CBT nadir, and a sleep measure, sleep onset or offset, and are shown in the bottom panel. SE bars are shown.
