Insomnia: Certain types of brain cell explain genetic risk

On February 26, 2019, Posted by , In Buzz, By ,,,,,,, , With No Comments

New research in the journal Nature Genetics identifies individual types of brain cell and brain areas that are involved in insomnia, offering new treatment targets for this condition. New research helps explain why some people struggle to sleep. Insomnia affects about a third of people living in the United States…

Mathematical models explain east-west asymmetry of jet lag recovery

On July 13, 2016, Posted by , In Buzz, By ,,,,, , With No Comments

Travelers frequently report experiencing a significantly slower jet lag recovery after an eastward vs. westward flight. While some are quick to dismiss this complaint as being “all in their head,” new research suggests it may be caused by the oscillation of a certain type of brain cells. …

New findings explain the connection between melatonin and type 2 diabetes

On May 17, 2016, Posted by , In Buzz, By ,,,,,, , With No Comments

A new experimental and clinical study from Lund University in Sweden shows that the sleep hormone melatonin impairs insulin secretion in people with a common gene variant. “This could explain why the risk of type 2 diabetes is greater among, for instance, overnight workers or people with sleeping disorders”, says…

Sleep changes seen with fetal alcohol exposure partly explain learning and mood problems

On February 26, 2016, Posted by , In Buzz, By ,,,,,,,,,, , With No Comments

Slow-wave sleep – the deeper sleep during which the brain turns each day’s events into permanent memories – is fragmented in adulthood in people exposed to high levels of alcohol in the womb. This is according to a study conducted by researchers at NYU Langone Medical Center and…

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…

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,…