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The purpose of this research study is to investigate the relationship between reminder messages sent via text and compliance with a daily morning light intervention designed to advance the circadian clock. Twenty healthy adults will be recruited to participate in a randomized, cross-over study where daily messages are, or are not, provided to remind participants to carry out the intervention.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Light Googles plus reminder text messages | Active Comparator | Participants use green light goggles for one hour each morning for two consecutive weeks and also receive a daily text message reminding them to wear the light goggles |
|
| Light Goggles alone | Experimental | Participants use green light goggles for one hour each morning for two consecutive weeks |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Light goggles | Device | Green light goggles worn for 1 hour each morning for two weeks |
|
| Measure | Description | Time Frame |
|---|---|---|
| Saliva samples for melatonin levels | Serial saliva samples will be collected to calculate dim light melatonin onset. | Baseline and 2-weeks post-intervention for each Arm |
| Measure | Description | Time Frame |
|---|---|---|
| Light exposure using the Speck | The Speck light meter will be used to collect overall light exposure.The Speck light meter uses a photosensor to measure the amount of light study participants are exposed to each day. | worn all 12 study weeks |
| Sleep time using actigraphy |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Mariana Figueiro, PhD | Ichan School of Medicine | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Light and Health Research Center | Menands | New York | 12204 | United States |
overall study results will be shared not individual.
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| Release Date | Unrelease Date | Unrelease Date Unknown | Reset Date | MCP Release Number |
|---|---|---|---|---|
| Jul 6, 2026 |
| ID | Term |
|---|---|
| D000544 | Alzheimer Disease |
| D060825 | Cognitive Dysfunction |
| ID | Term |
|---|---|
| D003704 | Dementia |
| D001927 | Brain Diseases |
| D002493 | Central Nervous System Diseases |
| D009422 | Nervous System Diseases |
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| Daily reminder test message | Behavioral | Participants will receive daily text message reminding them to use light goggles each morning |
|
Sleep time will be calculated from the actigraph. The wrist actigraph measures activity during the day and how well you sleep at night. The actigraph software will calculate the amount of time spent in bed sleeping. |
| worn all 12 study weeks |
| D024801 |
| Tauopathies |
| D019636 | Neurodegenerative Diseases |
| D019965 | Neurocognitive Disorders |
| D001523 | Mental Disorders |
| D003072 | Cognition Disorders |