Biologists have performed the first large-scale screening in a vertebrate animal for genes that regulate sleep, and have identified a gene that when over-activated causes severe insomnia. Expression of the gene, neuromedin U (Nmu), also seems to serve as nature’s stimulant, because fish lacking the gene take longer to wake up in the morning and…
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A new study of firefighters suggests that insomnia and nightmares may increase the risk of depression by impairing the ability to access and leverage emotion regulation strategies effectively. Results show that a high percentage of participants reported clinically significant insomnia symptoms (52.7 percent), depression symptoms (39.6 percent) and nightmare problems (19.2 percent). Further analyses revealed…
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One in 15 adults has moderate to severe obstructive sleep apnea, a disorder in which a person’s breathing is frequently interrupted during sleep — as many as 30 times per hour. People with sleep apnea also often report problems with thinking such as poor concentration, difficulty with memory and decision-making, depression, and stress. According to…
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Jet lag is a drag. The effects of flying across time zones can be debilitating for some people, as the rising and setting of the sun no longer match their internal body clock. The only treatment has been time to adjust, but a new study says there may be a way to start easily adjusting…
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People with a condition that causes them to stop breathing in their sleep could be helped by new research. Scientists have gained fresh insights into the signals that regulate breathing during sleep, when oxygen levels are low. The study could lead to new treatments for the condition called central sleep apnea – which occurs during…
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Sleep-deprived people are much more likely to sign false confessions than rested individuals, according to a groundbreaking study that has important implications for police interrogation practices. The odds of signing a false confession were 4.5 times higher for participants who had been awake for 24 hours than for those who had slept eight hours the…
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A new study suggests that frequent shifts in sleep timing may be related to adverse metabolic health, among non-shift working, midlife women. Results show that greater variability in bedtime and greater bedtime delay were associated with higher insulin resistance, and greater bedtime advance was associated with higher body mass index (BMI). In prospective analyses, greater…
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Researchers are presenting new information from a study that links poor sleep among pregnant women with gestational weight gain. Previous studies have pointed to a link between obesity and weight gain among women who are not pregnant. The researchers in this study set out to determine the relationship between objectively measured sleep duration and weight gain…
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If you know a teenager, you most likely know that it’s hard to separate them from their smartphones. And, teen dedication to texting and instant messaging is hurting their sleep and their grades, according to a new study conducted at Rutgers University. The study, published in the Journal of Child Neurology, is the first of…
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It’s a fairly obvious statement that when we don’t sleep enough, we can be irritable and oversensitive. Researchers in Israel say they now found the brain mechanism that makes that happen. Participants in the research conducted at Tel Aviv Sourasky Medical Center and Tel Aviv University were asked to recall a series of numbers and identify…
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