Influence of Sleep Regularity on Circadian Rhythms, Learning, Performance, and Mood

Influence of Sleep Regularity on Circadian Rhythms, Learning, Performance, and Mood

The study is a combination of outpatient and inpatient monitoring. During the 27-day inpatient portion of the study, the individual's sleep-wake schedule will be varied daily. Volunteers will be randomized to a regular or irregular inpatient schedule.

Inclusion Criteria:

• healthy
• BMI between 18.5 and 29.5

Exclusion Criteria:

• medications
• recent night-work, shift-work, or travel across >2 time zones
• use of medications
• pregnant or within 6 months post-partum