CIRCADIAN RHYTHM

This small pilot study is testing if two wearable devices are easy and helpful for people with Alzheimer's and their caregivers. One device is a wristwatch that tracks activity and sleep. The other is a pair of glasses that uses light therapy, which may help improve sleep and moo…

This study is testing whether special 'dynamic' lighting in hospital rooms can help improve sleep and daily rhythms for elderly patients. It will involve 300 patients over age 65 who are hospitalized. Researchers will compare patients in rooms with the special lighting to those i…

This study aims to understand how a person's natural daily rhythm (whether they're a morning or evening person) affects how they perceive time and make decisions. Healthy Danish-speaking adults will complete two lab sessions—one at their preferred time of day and one at their non…

This study aims to understand how our internal body clock and sleepiness affect how we perceive time. Healthy adult volunteers will stay awake for about 36 hours in a controlled lab while taking regular tests on time perception, alertness, and mood. By measuring these changes alo…

This study aims to understand how eating a high-fat diet affects your body's internal clock and its ability to adjust to schedule changes. Researchers will compare how quickly healthy participants' biological rhythms adapt when eating high-fat versus low-fat meals during controll…

This study aims to understand how what we eat affects how we sleep and our body's daily functions. Healthy young adults will try two different diets—one unhealthy 'Western' style and one healthier, fiber-rich diet—while researchers measure their sleep, heart rate, blood sugar, an…

This study aims to understand if having a more regular sleep schedule improves markers of heart, blood vessel, and metabolic health. Researchers will ask healthy adults and a subgroup with chronic pain to keep a consistent bedtime for 12 weeks. They will measure changes in blood …

This study aims to understand how using cannabis and then stopping it affects sleep, the body's natural daily rhythms, and sensitivity to light. Researchers will compare 180 young adults who regularly use cannabis with those who don't, monitoring them at home and during lab visit…

This study aims to understand how sleep loss, combined with different patterns of light exposure and food intake, affects your body's metabolism and insulin sensitivity. Healthy adults aged 18-35 will stay overnight in a clinic three times to test different sleep and meal schedul…