News tagged with circadian clock
Body clocks of depressed people altered at cell level, researchers show
Every cell in our bodies runs on a 24-hour clock, tuned to the night-day, light-dark cycles that have ruled us since the dawn of humanity. The brain acts as timekeeper, keeping the cellular clock in sync ...
Medical research
May 13, 2013 |
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Too little sleep, disrupted internal clock means higher risk of diabetes and obesity
A study by researchers at Brigham and Women's Hospital (BWH) reinforces the finding that too little sleep or sleep patterns that are inconsistent with our body's "internal biological clock" may lead to increased risk of diabetes ...
Health
Apr 11, 2012 |
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Discovery of circadian clock in mice hair reveals period of time when damage from radiotherapy can be quickly repaired
Discovering that mouse hair has a circadian clock - a 24-hour cycle of growth followed by restorative repair - researchers suspect that hair loss in humans from toxic cancer radiotherapy and chemotherapy ...
Medical research
May 20, 2013 |
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Researchers identify new circadian clock component
Northwestern University scientists have shown a gene involved in neurodegenerative disease also plays a critical role in the proper function of the circadian clock.
Genetics
May 16, 2013 |
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Study explains what triggers those late-night snack cravings
A study published in the most recent version of the journal Obesity found that the body's internal clock, the circadian system, increases hunger and cravings for sweet, starchy and salty foods in the evenings. While the ur ...
Overweight and Obesity
Apr 30, 2013 |
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Our internal clocks can become ticking time bombs for diabetes and obesity
If you're pulling and all-nighter to finish a term paper, a new parent up all night with a fussy baby, or simply can't sleep like you once could, then you may be snoozing on good health. That's because new research published ...
Medical research
Apr 01, 2013 |
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Cell death in retina helps tune our internal clocks
(Medical Xpress)—With every sunrise and sunset, our eyes make note of the light as it waxes and wanes, a process that is critical to aligning our circadian rhythms to match the solar day so we are alert during the day and ...
Neuroscience
Mar 05, 2013 |
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Circadian clock linked to obesity, diabetes and heart attacks
Disruption in the body's circadian rhythm can lead not only to obesity, but can also increase the risk of diabetes and heart disease.
Medical research
Feb 21, 2013 |
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Circadian rhythms can be modified for potential treatment of disorders
(Medical Xpress)—UC Irvine-led studies have revealed the cellular mechanism by which circadian rhythms – also known as the body clock – modify energy metabolism and also have identified novel compounds that control ...
Cardiology
Jan 22, 2013 |
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Re-Timer ready to reset sleep
(Medical Xpress)—Today saw the launch of Re-Timer, a wearable green light device invented by Flinders University sleep researchers to reset the body's internal clock.
Psychology & Psychiatry
Nov 21, 2012 |
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New paper examines shifting gears in the circadian clock of the heart
A new study conducted by a team of scientists led by Giles Duffield, assistant professor of biological sciences and a member of the Eck Institute for Global Health at the University of Notre Dame focuses on the circadian ...
Cardiology
Oct 23, 2012 |
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Researchers discover molecular link between circadian clock disturbances and inflammatory diseases
Scientists have known for some time that throwing off the body's circadian rhythm can negatively affect body chemistry. In fact, workers whose sleep-wake cycles are disrupted by night shifts are more susceptible to chronic ...
Medical research
Aug 01, 2012 |
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Sleep deprivation effect on the immune system mirrors physical stress
Severe sleep loss jolts the immune system into action, reflecting the same type of immediate response shown during exposure to stress, a new study reports.
Sleep apnea
Jun 30, 2012 |
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Women trying to have babies face different clock problem
A new Northwestern University study shows that the biological clock is not the only clock women trying to conceive should consider. The circadian clock needs attention, too.
Obstetrics & gynaecology
May 23, 2012 |
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Brain oscillations reveal that our senses do not experience the world continuously
(Medical Xpress) -- It has long been suspected that humans do not experience the world continuously, but rather in rapid snapshots.
Neuroscience
May 14, 2012 |
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Circadian rhythm
A circadian rhythm is a roughly-24-hour cycle in the biochemical, physiological or behavioral processes of living entities, including plants, animals, fungi and cyanobacteria (see bacterial circadian rhythms). The term "circadian", coined by Franz Halberg, comes from the Latin circa, "around," and diem or dies, "day", meaning literally "approximately one day." The formal study of biological temporal rhythms such as daily, tidal, weekly, seasonal, and annual rhythms, is called chronobiology.
Circadian rhythms are endogenously generated, and can be entrained by external cues, called Zeitgebers, the primary one of which is daylight. These rhythms allow organisms to anticipate and prepare for precise and regular environmental changes.
For more information about Circadian rhythm, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
