CIRCADIAN RHYTHM

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

This study tests whether a special type of artificial light that changes throughout the day can improve sleep, body clock function, and overall well-being in frail older adults. Researchers will enroll 300 people over age 65 who are staying in hospital rooms equipped with this dy…

This study investigates whether the match between a person's chronotype (morning or evening preference) and the time of day influences how they perceive time. Healthy adults who are clear morning or evening types complete perception and cognition tasks both early in the morning a…

This study aims to understand how the light from tablet screens and the type of content children watch before bed affect their sleep, thinking skills, and emotions. Researchers will have 220 children aged 8 to 11 spend one hour before bed either using a bright tablet, a dim table…

This study looks at how cannabis use and stopping it affect sleep, daily body 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 i…

This study from Uppsala University looks at how a low-fat, fiber-rich diet versus a high-fat, Western-style diet affects sleep quality, heart rate, and metabolism. Twenty-four healthy young adults will follow each diet for about a week, then spend two days in the lab for detailed…

This study looks at how different patterns of light exposure and food intake affect the body's metabolism when sleep is reduced. Researchers will monitor 120 healthy adults aged 18-35 over 4-6 months, including three overnight clinic stays. The goal is to understand how these fac…

This study looks at how being a 'morning person' or 'night owl' changes the way you experience time. Healthy adults aged 23-45 will do computer tasks at their preferred time of day and again at the opposite time. Researchers want to see if time judgments and alertness are worse w…

This study looks at how the body's internal clock changes our perception of time when we stay awake for 36 hours. Thirty healthy adults will remain awake in a controlled lab, with constant light, posture, and food. Every two hours, they complete tests on time estimation, reaction…

This study looks at whether keeping a regular sleep schedule can improve heart and metabolic health in healthy adults aged 18-40, and also in people with chronic pain. Over 12 weeks, researchers will measure changes in sleep timing, blood pressure, heart rate, and other health ma…

This study looks at how eating a high-fat diet can change your body's internal clock, which controls sleep and other daily rhythms. 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…