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.
Effects of three days of a simulated day or night shift schedule on the temporal patterns of cortisol measured under constant routine. Data are shown as group means and standard error. The gap in the line show where the 24-h constant routine protocol began/ended. There was a small delay in acrophase with the night shift condition compared with the day shift condition.
