Oral micronized progesterone (OMP) may diminish hot flashes and night sweats in perimenopausal women, new research from Canada reports. The results will be presented on Monday, March 19 at ENDO 2018, the 100th annual meeting of the Endocrine Society in Chicago, Ill.
Studies have found an association between insufficient sleep and the development of insulin resistance, one of the factors that cause type 2 diabetes, and now researchers have discovered a biological reason for this relationship, at least in men: an imbalance between their testosterone and cortisol hormones. The study results will be presented Sunday at ENDO 2018, the Endocrine Society's 100th annual meeting in Chicago, Ill.
This week, thousands of graduating medical students around the country will find out where they'll head next, to start their residency training. But a new study gives the first objective evidence of the heavy toll that the first year of residency can take on their sleep, physical activity and mood.
During the hours of sleep the memory performs a cleaning shift. A study led by a Spanish scientist at the University of Cambridge reveals that when we sleep, the neural connections that collect important information are strengthened and those created from irrelevant data are weakened until they get lost.
A new study shows that a high percentage of military personnel with sleep disturbances met criteria for nightmare disorder, but few of them reported nightmares as a reason for sleep evaluation. Those with nightmare disorder had an increased risk of other sleep and mental health disorders.
Researchers from the UCLA School of Nursing examined clinical records and magnetic resonance imaging brain scans of patients who were recently diagnosed with sleep apnea, and discovered several apparent connections between thinning of the brain's cerebral cortex and apnea symptoms.
Excessive daytime sleepiness in a group of older adults without dementia was associated with increased accumulation of a brain protein that is an important biomarker for Alzheimer's disease.
Research at the University of York has shown that the content of newly formed memories can be decoded from brain activity whilst people are asleep.
Scientists have long known that sleep is important to the formation and retention of new memories. Memory consolidation is associated with sudden bursts of oscillatory brain activity, called sleep spindles, which can be visualized and measured on an electroencephalogram (EEG). Now researchers reporting in Current Biology on March 8 have found that sleep spindles also play a role in strengthening new memories when newly learned information is played back to a person during sleep.
Circuits in the brain act as an internal clock to tell us it is time to sleep and to control how long we then stay asleep. A new study in flies suggests a part of that clock constantly monitors changes in external temperature and integrates that information into the neural network controlling sleep. The study was published in Nature and was supported by the National Institute of Neurological Disorders and Stroke (NINDS).