Later circadian timing of food intake is associated with increased body mass index

On September 25, 2017, Posted by , In Buzz, By ,,,,,,,,, , With No Comments

Weight gain and obesity has been described as an epidemic and a complex problem in the United States. Previous research has linked poor diet to weight gain and high body fat, and eating later in the day has also been described as a risk factor for weight gain; however, the…

New 'late-life cycler' circadian genes linked to aging and stress

On February 22, 2017, Posted by , In Buzz, By ,,,,,, , With No Comments

Researchers from Oregon State University have discovered a subset of circadian genes that only become active as an organism ages or during times of stress. They could provide a new lens through which to view the process of cellular aging. A new set of circadian genes that become active during…

Poor self-regulation in teens associated with circadian rhythms and daytime sleepiness

On November 4, 2016, Posted by , In Buzz, By ,,,,,,, , With No Comments

Chronic insufficient sleep is at epidemic levels in U.S. teens and has been associated with depression, substance use, accidents, and academic failure. Poor self-regulation or an inability to alter thinking, emotions, and behaviors to meet varying social demands is thought to be a key link between inadequate sleep in…

Circadian rhythm gene affects malignant breast cancer's spread

On September 23, 2016, Posted by , In Buzz, By ,,,,,,, , With No Comments

Sleep cycle interruptions may affect breast cancer formation and metastasis. Expression of a gene in the circadian rhythm pathway, Arntl2, has a significant effect on whether certain breast cancers will metastasize into additional tumors, reports Kent Hunter of the National Cancer Institute (NCI) in Bethesda, Maryland and…

Human brain clocks exposed: Effects of circadian clocks and sleep loss vary across brain regions, new study finds

Ever wondered what happens inside your brain when you stay awake for a day, a night and another day, before you finally go to sleep? In a new study published in the journal Science, a team of researchers from the University of Liege and the University of Surrey have…

Cognition and sex differences in circadian rhythms

On April 19, 2016, Posted by , In Buzz, By ,,, , With No Comments

Shifted sleep-wake cycles might differently influence brain function in men and women, according to a study. Circadian rhythms affect brain function via the sleep-wake cycle, but whether the effects differ between men and women is unknown. Derk-Jan Dijk and colleagues compared the effects of circadian phase and sleep-wake…

Architecture of the suprachiasmatic nucleus (SCN) infered, the control center for circadian processes

Honed over millions of years of evolution, our circadian rhythms are responsible for the adaptation of our bodies to cycles of light and dark. One need only experience a bout of jetlag to appreciate how we resynchronize various bodily functions to a new time zone. However, while the…

Circadian misalignment helps explain higher risk for cardiovascular disease

On February 9, 2016, Posted by , In Buzz, By ,,,,,,, , With No Comments

New research from Brigham and Women’s Hospital finds that circadian misalignment increases blood pressure and inflammatory markers. Shift workers frequently undergo circadian misalignment, disruption of the “body clock,” caused by inverted wake and sleep cycles. Although shift work, which requires workers to be awake when the brain’s circadian…

Bacteria engineered with synthetic circadian clocks

On December 13, 2015, Posted by , In Buzz, By ,,,, , With No Comments

Many of the body’s processes follow a natural daily rhythm or so-called circadian clock, so there are certain times of the day when a person is most alert, when the heart is most efficient, and when the body prefers sleep. Even bacteria have a circadian clock, and in a December…

New research helps to explain how temperature shifts the circadian clock

On December 3, 2015, Posted by , In Buzz, By ,,,,,, , With No Comments

For many living things, a roughly 24-hour internal clock governs the rhythms of life — everything from sleep in animals, to leaf opening in plants and reproduction in bread mold. Scientists have come to understand much about this internal time-keeping system, but one important aspect, its complex response to temperature,…