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Chronobiology

All articles tagged with #chronobiology

63 Days in a Dark Cave Reshaped Our Understanding of Biological Clocks
science22 days ago

63 Days in a Dark Cave Reshaped Our Understanding of Biological Clocks

In 1962, Michel Siffre spent 63 days in a French cave with no time cues, revealing that humans have an internal circadian clock that can run free from the 24-hour day. His findings helped launch chronobiology, informed spaceflight and military confinement protocols, and continue to influence modern research on timing in medicine and astronaut missions. The data remain a reference point for agencies like NASA and ESA, even as the concept of biological time alignment guides current experiments and clinical chronotherapy.

via Indian Defence Review|
#chronobiology#circadian-rhythm#michel-siffre
"New Study Reveals Surprising Insignificance of Light Color on Circadian Rhythms"
health-and-science2 years ago

"New Study Reveals Surprising Insignificance of Light Color on Circadian Rhythms"

A study by researchers, including Dr. Christine Blume from the University of Basel and Professor Manuel Spitschan from the Technical University of Munich, has found that the color of light does not significantly affect the human internal clock or sleep patterns. The study involved exposing participants to different colors of light and measuring various sleep-related parameters. The results suggest that while light-sensitive ganglion cells are crucial for regulating the internal clock, the color of light, as perceived through cones, plays a minor role. This challenges the common belief that the blue light from screens is disruptive to sleep, indicating that the effect is more about the light's intensity and less about its color. The findings have implications for the design of lighting and electronic devices to support healthy sleep patterns. The study was published in the journal Nature Human Behavior.

via Earth.com|
##chronobiology#circadianrhythm
The Impact of Sunlight Deprivation on Health: Insights from Nobel Laureate Michael Rosbash
science-and-health2 years ago

The Impact of Sunlight Deprivation on Health: Insights from Nobel Laureate Michael Rosbash

Michael Rosbash, Nobel Laureate in Medicine and chronobiologist, discusses the importance of circadian rhythms and the impact of light exposure on our health. He highlights that 70% of our genes are regulated by circadian rhythms, and lack of sunlight during the day is more detrimental than exposure to electric lighting at night. Rosbash emphasizes the need for public funding agencies to support basic research, as it forms the foundation for applied research. He also suggests that manipulating the molecular clock with drugs could potentially address chronodisruption associated with aging.

via EL PAÍS USA|
#biological-clock#chronobiology#circadian-rhythms
"Unveiling the Secrets of Circadian Rhythms: A Remarkable Rediscovery"
science-and-health2 years ago

"Unveiling the Secrets of Circadian Rhythms: A Remarkable Rediscovery"

The study of circadian rhythms, the internal biological clocks that regulate various bodily functions, has gained significant attention in recent years. These rhythms, influenced by cues from the environment, play a crucial role in our overall health and well-being. Disruptions to our circadian rhythms, such as jet lag or shift work, can have negative effects on sleep, metabolism, immune function, and mental health. Understanding and aligning with our natural circadian rhythms can lead to improved sleep, better health outcomes, and enhanced performance. Researchers are exploring the potential of using circadian science in various fields, including medicine, to optimize treatment timing and improve patient outcomes.

via Noema Magazine|
#biological-clocks#chronobiology#circadian-rhythms