SLEEP DEPRIVATION

This study is testing if changing when you eat can protect your heart health when you don't get enough sleep. Researchers are recruiting 100 adults who habitually sleep 6.5 hours or less per night. They will compare the effects of eating all food within an 8-hour window versus a …

This study compares two ways to use caffeine to stay alert when you're very sleep-deprived. Researchers want to see if a personalized smartphone app that recommends caffeine doses works better than standard advice. They will test 180 healthy young adults who will stay awake for o…

This study is testing whether a gentle, non-invasive massage technique on the neck and head can help improve memory and thinking problems caused by not getting enough sleep. Researchers will enroll 30 healthy adults who are sleep-deprived to see if this massage can provide quick …

This study is testing a bundle of non-drug treatments to help fix the sleep and internal body clock of patients in the intensive care unit (ICU). It will involve about 160 critically ill adults and combines bright daytime light, scheduled meals and activity, and overnight sleep p…

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 the sleep deprivation from 24-hour hospital shifts affects the immune systems of surgery residents. Researchers will recruit 60 healthy residents to measure changes in their immune cells and inflammation before and after their long shifts. The go…

This research aims to understand how healthy women's bodies and minds respond to sleep loss at different points in their menstrual cycle. The study will enroll 100 premenopausal women who will stay in a lab for about 1.5 weeks while researchers monitor their sleep patterns, hormo…

This study is looking at how staying awake for 24 hours affects certain blood markers linked to Alzheimer's disease. Researchers will compare healthy young adults who either stay awake or sleep normally, focusing on people with different genetic backgrounds. The goal is to unders…

This study aims to understand why suicide risk appears higher during the late-night hours. Researchers will observe about 90 adults who have recently experienced suicidal thoughts, testing their mood and decision-making when awake between 2:00 and 4:00 AM. The goal is to learn if…

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…