Excessive and early-day napping in older adults correlates with increased mortality risk. New evidence suggests…
Browsing: Circadian Rhythm
Circadian Rhythm refers to the internal process that regulates the sleep-wake cycle and repeats roughly every 24 hours. These biological rhythms are found in most living organisms, including humans, plants, and microbes, and are influenced by external cues like light and temperature. In humans, the circadian clock is located in the suprachiasmatic nucleus (SCN) of the brain’s hypothalamus. It plays a crucial role in determining the timing of various physiological processes, such as hormone release, eating habits, and body temperature regulation. Disruptions to this rhythm, such as those caused by shift work, jet lag, or poor sleep habits, can lead to various health problems, including sleep disorders, depression, and metabolic syndrome. Understanding and maintaining a stable circadian rhythm is important for overall health and well-being.
A new hair-based test offers a surprisingly simple way to peer into the body’s internal…
A clinical trial suggests that a wake-promoting drug may help early-morning shift workers overcome the…
Insomnia may be driven by delayed circadian rhythms that prevent the brain from powering down…
Participants stopped eating and lowered the lights three hours before bedtime, extending their overnight fast…
A new oral compound can reset the circadian clock independent of timing, dramatically speeding recovery…
Research Highlights: Adults in midlife and older age who tend to be most active in…
A weakening body clock and later daily energy peaks may quietly raise dementia risk. A…
Alzheimer’s may advance by breaking the brain’s internal clock—and resetting it could help fight the…
Disabling a clock protein shields the brain from Alzheimer’s effects—hinting at a new path for…
A new analysis from Stanford Medicine scientists shows that shifting clocks twice a year disrupts…
Artificial light at night does far more than disrupt sleep—it can throw off immune defenses,…
Twin data reveal late meals disrupt glucose metabolism and circadian timing. Genetic and lifestyle factors…
Human circadian rhythms remain tied to seasonal sunlight, with genetic differences influencing how individuals respond…
Eating earlier—both breakfast and dinner—might be a key to maintaining a healthy weight. A five-year…
Morning light conditions before waking up can impact how restful your sleep feels. Sleep is…
Eating at the right time of day may be more important for heart health than…
A new study found that women in their 80s who experience increasing daytime sleepiness over…