Nighttime Synchrony of Your Nutrition and Circadian Health

Summary

Sleep is an important factor for overall health. This study will see how different light exposure patterns and food intake impact a person's metabolism (how the body breaks down food) when sleeping is reduced.

Participants will attend 6 to 8 in-person visits to the study clinic, including three overnight stays. People will complete surveys and medical tests. The study will last about 4 to 6 months.

Conditions

• Sleep
• Metabolism Changes
• Circadian Rhythm
• Lifestyle Factors
• Sleep Hygiene
• Sleep Hygiene, Inadequate
• Sleep Deprivation
• Insufficient Sleep
• Circadian Misalignment
• Circadian Dysregulation
• Light Exposure

Interventions

BEHAVIORAL

Central Clock Misalignment

Light exposure will be dimmed during the first 4 hours of scheduled wakefulness, with bright light exposure during the nighttime hours of extended wakefulness.

BEHAVIORAL

Peripheral Misalignment

Most daily calories will be given later in the day to shift eating patterns toward the nighttime hours.

Sponsors & Collaborators

• University of Utah

  lead OTHER

Principal Investigators

• Christopher Depner, PhD · University of Utah

Study Design

Allocation

RANDOMIZED

Purpose

BASIC_SCIENCE

Masking

TRIPLE

Model

CROSSOVER

Eligibility

Min Age

18 Years

Max Age

35 Years

Sex

ALL

Healthy Volunteers

Yes

Timeline & Regulatory

Start

2025-12-19

Primary Completion

2030-05-31

Completion

2031-05-31

Countries

• United States

Study Locations