Body clock study reveals when we lose track of time
NCT ID NCT07294781
First seen Jan 10, 2026 · Last updated Jun 23, 2026 · Updated 25 times
Summary
This study looks at how the body's internal clock changes our perception of time when we stay awake for 36 hours. Thirty healthy adults will remain awake in a controlled lab, with constant light, posture, and food. Every two hours, they complete tests on time estimation, reaction speed, and mood, while saliva samples track melatonin levels. The goal is to identify when during the day-night cycle people are most prone to time distortions and reduced alertness, which could help improve shift-work scheduling.
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Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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Aarhus University, Department of Psychology and Behavioural Sciences
RECRUITINGAarhus, 8000, Denmark
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What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
What this could lead to
If successful, this study could help design better shift schedules to reduce errors and accidents caused by distorted time perception and sleepiness.
What could go wrong
This is a small, early-stage observational study in healthy volunteers, so findings may not apply to real-world settings or people with sleep disorders.
Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.