Rewiring the body clock: Deep brain imaging reveals unexpected complexity in jet lag adjustment
Deep-brain imaging in awake mice reveals how light resets the circadian clock by activating complex SCN neuron networks.
Jun 16, 2025
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Nervous System: News and Research on Suprachiasmatic Nucleus
MeSH tree: A08.186.211.200.317.357.342.625
Adding sweetener to coffee enhances 'night-owl' effects of caffeine, research reveals
Adding sugar or artificial sweeteners to coffee disrupted the body clocks in mice more than coffee on its own, researchers have found, with it causing day and night to be reversed in some mice. If this holds for humans as ...
Dec 19, 2024
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Q&A: Study shows males spend approximately 52% more time in bright light than females
Danielle A. Wallace, MPH, Ph.D., from the Division of Sleep and Circadian Disorders in the Department of Medicine at Brigham and Women's Hospital, is the corresponding author of a new study in npj Biological Timing and Sleep, ...
Dec 16, 2024
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Fruit fly study provides a blueprint for the brain's circadian clock
Circadian clocks control physiological processes and behavior in virtually all living organisms. Now an international research team led by researchers from the University of Würzburg has created a detailed map of the internal ...
Dec 5, 2024
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A 'chemical metronome': Researchers uncover how astrocytes help the brain's master clock keep time
Imperial researchers have uncovered a "chemical metronome" in the brain, which helps to synchronize the master clock that tells us when it's time to sleep. In a study of brain cells from mice and humans, researchers found ...
Dec 3, 2024
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Daily rhythms depend on receptor density in biological clock, study shows
In humans and other animals, signals from a central circadian clock in the brain generate the seasonal and daily rhythms of life. They help the body to prepare for expected changes in the environment and also optimize when ...
Jul 24, 2024
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Brain circuit discovery illuminates circadian rhythms, psychiatric disorders with seasonal flare-ups
Harvard Medical School scientists have discovered a brain circuit that influences the ability to adapt to changes in day length, like those that occur from season to season or when traveling across time zones.
Jul 17, 2024
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Therapy using intense light and chronological time can benefit heart
Managing circadian rhythms through intense light and chronologically timed therapy can help prevent or treat a variety of circulatory system conditions including heart disease, according to a new study from researchers at ...
Mar 14, 2024
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Study identifies 'visual system' protein for circadian rhythm stability
Scientists at the Johns Hopkins University School of Medicine and the National Institutes of Health have identified a protein in the visual system of mice that appears to be key for stabilizing the body's circadian rhythms ...
Dec 27, 2023
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Light therapy may improve symptoms of Alzheimer's disease
Light therapy leads to significant improvements in sleep and psycho-behavioral symptoms for patients with Alzheimer's disease, according to a new study published in PLOS ONE by Qinghui Meng of Weifang Medical University, ...
Dec 6, 2023
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