Melatonin is a naturally produced molecule that has long been suspected to play a role in healthy sleep, but it has been unclear how it does so. Now, Caltech researchers have discovered a mechanism through which melatonin ...
Apr 20, 2026
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Working double shifts is associated with alterations in normal cortisol patterns, according to a study published online April 8 in Nursing Open.
Apr 16, 2026
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Sleep deprivation has long been known to weaken the immune system. Now UF Health Cancer Institute researchers have made a startling discovery: The gut microbiota drives changes to the immune system caused by chronic sleep ...
Apr 16, 2026
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Humans and most other organisms have internal biological clocks that track the daily cycle of sunrise and sunset. These clocks help time our sleep, metabolism and other essential body functions over the course of a day, creating ...
Apr 10, 2026
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As you get older, it's normal to notice changes in your sleep. These can include fewer hours of shuteye, waking up more during the night, and finding it harder to drop off. However, despite the general view that older people ...
Mar 24, 2026
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Nearly half of all U.S. children aren't getting the sleep they need, a new National Sleep Foundation survey reports. About 44% of children do not consistently get the recommended amount of sleep for their age, according to ...
Mar 15, 2026
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Northwestern Medicine scientists led by Joseph Bass, MD, Ph.D., the Charles F. Kettering Professor of Endocrinology and Metabolism and director of the Center for Diabetes and Metabolism, have discovered how disruptions in ...
Mar 9, 2026
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When the days start to get longer again, Dr. Christine Blume's phone rings more often. That's because journalists want to ask the sleep researcher what spring fatigue is all about.
Mar 9, 2026
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Most of America "springs forward" Sunday for daylight saving time. Losing that hour of sleep can do more than leave you tired and cranky the next day; it also could harm your health.
Mar 7, 2026
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Each spring, 48 states advance the clock an hour to observe daylight saving time. A new study led by UC Davis neurologist and sleep expert Sasikanth Gorantla shows that the change can lead to more migraines and less deep ...
Mar 5, 2026
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