U.S., Dec. 20 -- ClinicalTrials.gov registry received information related to the study (NCT07294781) titled 'Circadian Rhythms and Time Perception in Healthy Adults During Constant Wakefulness' on Dec. 08.
Brief Summary: This study examines how the internal body clock (circadian rhythms) influences the way healthy adults experience time, think, and feel when they stay awake for an extended period. Participants will spend about 36 hours in a controlled sleep laboratory while remaining awake the entire time. Light, posture, food intake, and activity are kept as constant as possible (a "constant routine") so that changes over time mainly reflect the body's internal clock and increasing sleepiness, rather than changes in the environment. Every...