344
Participants
Start Date
April 26, 2021
Primary Completion Date
January 31, 2026
Study Completion Date
January 31, 2026
No change in meal timing
Participants will eat within an ≥11-hour daily period (no change in meal timing habits).
No change in light exposure
Participants will not change their light exposure habits.
Early Time-Restricted Feeding
Participants will eat within an 8-hour daily period early in the day, starting within 2 hours of waking up.
Timed Light Therapy
Participants will use bright light therapy for 60 minutes between 6 am - 3 pm, blue light-blocking glasses for one hour before bedtime, and blackout curtains at night.
RECRUITING
University of Alabama at Birmingham; Birmingham Veterans Affairs Medical Center, Birmingham
University of Alabama at Birmingham
OTHER