This study is looking at how a "circadian intervention" can help people with overweight or obesity who don't get enough sleep. The intervention involves reducing light exposure in the evening and at night, increasing light in the morning, and finishing all meals at least four hours before bed. Researchers want to see if these changes can improve insulin sensitivity (how well your body uses sugar). You might be able to join if you are 18-45 years old, have a BMI between 25.0 and 34.9, and usually sleep less than 6.5 hours per night. The study's current status is unclear.

Study design

This is a randomized controlled trial with about 20 participants. Participants will be assigned to either the circadian intervention group or a control group, and staff and participants will not know their group until the study's end.

What's involved

You would complete an overnight sleep disorder screening, followed by about one week of at-home monitoring. Then, you would be in either the intervention or control group for about eight weeks, with regular contact with the study team. At the end of both the baseline and experimental segments, you would have overnight lab visits to check insulin sensitivity and circadian timing.

Compensation

Not stated in the trial record.

Follow-up

Your insulin sensitivity will be measured at the end of the approximately eight-week experimental segment.

AI-generated from the public study record. Only the study team can confirm whether you're eligible — confirm details with them before making decisions.