CIRCADIAN RHYTHM

This study tests whether a special type of dynamic lighting can improve sleep, daily rhythms, and overall well-being in frail older adults (over 65) who are in the hospital. Researchers will measure changes in melatonin levels and sleep patterns. The goal is to see if adjusting l…

This study tests two wearable devices in 20 people with Alzheimer's and their caregivers in rural Taiwan. One device tracks activity and sleep, while the other provides light therapy to improve sleep and mood. The goal is to see if these tools are easy to use and if they help red…

This study looks at how eating a Western-style unhealthy diet compared to a high-fiber diet changes sleep quality, heart rate, and metabolism. Researchers will monitor 24 healthy adults aged 18-32 using wearable devices and sleep tests. The goal is to understand the link between …

This study looks at how your internal body clock changes the way you experience time when you stay awake for 36 hours. Healthy adults aged 23 to 45 will stay in a controlled lab, awake the whole time, with everything kept constant. Every two hours, they will do short tests on tim…

This study looks at how being a morning person or a night owl changes the way you experience time. Healthy adults aged 23 to 45 who are clearly one type or the other will do computer tasks at their best time and at their worst time. The goal is to see if time judgments and alertn…

This study looks at how eating a high-fat diet can change the timing of your body's internal clock. Researchers will track 14 healthy, lean adults over 46 days, including 18 days spent in a research center. The goal is to understand how quickly the body's clock adjusts to a high-…

This study looks at how using cannabis—and stopping it—changes sleep, daily rhythms, and sensitivity to light in healthy young adults aged 18-25. Researchers will compare regular cannabis users with non-users using sleep monitors, light tests, and pupil measurements. The goal is …

This study looks at how different light exposure and meal timing affect the body's ability to process food when sleep is limited. Researchers will monitor 120 healthy adults aged 18-35 over several months, including overnight clinic stays. The goal is to understand how these fact…

This study looks at how keeping a consistent sleep schedule affects heart health and metabolism in healthy adults aged 18-40, and also in people with chronic pain. Over 12 weeks, researchers will track sleep patterns and measure things like blood pressure, heart rate, and blood s…