Sleeping disorder
Conditions
Interventions
Exposure to air for 30 min, 4 times
Exposure to 5,000 ppm CO2 for 30 min, 4 times
Sponsors
Tohoku University
Eligibility
Sex/Gender
Male
Inclusion criteria
Inclusion criteria: Healthy male between the ages of 20 and 35 years old who can voluntarily decide whether or not to participate in the study. No history of sleep disorders, neurological, cardiovascular, or respiratory diseases. Non-smoker No more than 400 mg of caffeine per day for 7 days prior to the start of the experiment, and no more than 3 days per week. (3 cups or less of coffee, 8 cups or less of green or black tea, 5 bottles or less of Red Bull, 2 bottles or less of Monster Energy) Less than 5 days of drinking in the past month BMI less than 30 No long-term use of sleeping pills or melatonin
Exclusion criteria
Exclusion criteria: Sleeping less than 6 hours for 4 or more days as a result of controlled bedtime/wake activity and activity meter sleep recording (7 days) before the study Subjects who consumed caffeine or alcohol on the day before the experiment Subjects who slept less than 6 hours on the day before the experiment. Subjects who showed "signs" of sleep disorder in the all-night polysomnography.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Sleep latency in multiple sleep latency test, subjective sleepiness, and objective sleepiness | — |
Countries
Japan
Contacts
Public ContactHitoshi Inada
Tohoku University Graduate School of Biomedical Engineering
Outcome results
None listed