The purpose of this study is to understand how differing durations of sleep impact metabolism. The results of this study may lead to interventions that promote healthy weight in individuals who live on alternative sleep schedules. Participation in this study consists of eating only meals that are provided to you at-home for up to 3 days while maintaining a controlled sleep-wake schedule. After these at-home proceures, we present a number of tests and procedures in an in-laboratory setting. The main research consists of staying in a laboratory suite for 14 consecutive days and nights in the Oregon Clinical and Translational Research Institute at OHSU.

Determining the Influence of Sleep on Cardiovascular Outcomes also known as DISCO is a study that is seeking to understand the relationship between cardiovascular disease risk and misalignment of behaviors with the internal biological timing system (circadian rhythm). This study is a 16 week sleep intervention to evaluate if changing irregular sleeping patterns to regular sleeping pattern will improve cardiovascular health.

We are looking for healthy people aged 18-40 for a study focused on food and the timing of the internal body clock (called the circadian rhythm). We are hoping to find out if differing types of foods change the way the internal body clock responds to different events across the day and night.

We are looking for healthy individuals that are overweight or obese and aged 18-40 for a study focused on how the timing of when you eat impacts health. We are hoping to find out maintaining a diet based on timing, rather than amount or content of calories, improves weight and metabolic health.