Relationship between nighttime light brightness and individual sleep and rhythm characteristics, obesity, and mental health
- Conditions
- Healthy subjects
- Registration Number
- JPRN-jRCT1030230179
- Lead Sponsor
- Kitamura Shingo
- Brief Summary
Not available
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- ot Recruiting
- Sex
- All
- Target Recruitment
- 2358
1) Persons who are between 20 and 79 years of age at the time of response.
2) Able to answer the questionnaire via the Internet.
1) Patients with pre-existing medical conditions (cardiovascular, liver, endocrine, brain/neurological, psychiatric, etc.), taking therapeutic drugs, or having a history of such conditions that may affect the results of the study
2) Persons who are dependent on alcohol or who are found to be in the habit of excessive alcohol consumption
3) Those who have a habit of taking drugs or supplements that affect sleep.
4) Pregnant, lactating, or planning to become pregnant during the study period
5) Who are using an implantable medical device such as a pacemaker
6) Any other person who is deemed inappropriate by the principal investigator.
Study & Design
- Study Type
- Observational
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method Association of nighttime light brightness with chronotype, obesity, and mental health by region
- Secondary Outcome Measures
Name Time Method Comparison of night light brightness, chronotype, obesity, and mental health between urban and suburban areas<br>Regional, age, and gender differences in the amount of effect of night light on chronotype, obesity, and mental health