UVA has discovered an unknown biological process that controls the production of vital cells that carry oxygen throughout the body. The discovery could help doctors develop new treatments for anemias that affect millions of people.
When people are awake, their pupils regularly change in size. Those changes are meaningful, reflecting shifting attention or vigilance, for example. Now, researchers reporting in Current Biology on Jan. 18 have found in studies of mice that pupil size also fluctuates during sleep. They also show that pupil size is a reliable indicator of sleep states.
Results of a randomized controlled trial suggest that systematic bright light exposure can improve sleep for fatigued people who have been treated for cancer.
The profile of most Americans who use popular mobile phone apps that track sleep habits is that they are relatively affluent, claim to eat well, and say they are in good health, even if some of them tend to smoke.
A study published in Military Medicine showed that after 30 days of practicing the Transcendental Meditation technique, 80 percent of the 46 veterans and active-duty personnel no longer had PTSD. All participants had been clinically diagnosed with PTSD using a standard assessment. By comparison, standard treatments for PTSD--prolonged exposure therapy, cognitive processing therapy, and medication--are only partially successful: approximately two-thirds of patients receiving cognitive processing therapy or prolonged exposure still have PTSD after treatment.
Sleeping for longer each night is a simple lifestyle intervention that could help reduce intake of sugary foods and lead to a generally healthier diet, according to a King's College London study.
People who travel for business two weeks or more a month report more symptoms of anxiety and depression and are more likely to smoke, be sedentary and report trouble sleeping than those who travel one to six nights a month. Among those who consume alcohol, extensive business travel is associated with symptoms of alcohol dependence. Poor behavioral and mental health outcomes significantly increased as the number of nights away from home for business travel rose.
Sleeping less than the recommended eight hours a night is associated with intrusive, repetitive thoughts like those seen in anxiety or depression, according to new research from Binghamton University, State University of New York.
Restricting meals to the same time each day improves motor activity and sleep quality in a mouse model of Huntington's disease, according to new research published in eNeuro. These findings suggest that eating on a strict schedule could improve quality of life for patients with neurodegenerative diseases for which there are no known cures.
To measure a person's sleep, researchers have relied on costly and time-consuming approaches that could only be used in a sleep lab. But now researchers reporting in Current Biology have found a way to capture detailed information on human sleep cycles over long periods of time while individuals slumber at home. According to the researchers, it will now be possible to objectively capture the real-life sleep habits and sleep quality of large numbers of people.