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effects of insomnia

The link between insomnia and high cholesterol

Dyslipidemia (otherwise known as high cholesterol) is a risk factor for a number of conditions, including stroke and heart disease. A recent Chinese study suggests that insomnia is associated with higher rates of dyslipidemia - particularly among women. The study in question involved over 10,000 Chinese adults who were asked [...]

Poor sleep quality could be shrinking your brain

It would seem that poor sleep quality really can have a negative effect on our brains. Not only can it destroy brain cells and affect brain function, it would appear that poor sleep quality can also shrink our brains. Researchers scanned the brains of 147 Norwegian adults with an average [...]

Sleep deprived teenagers more likely to end up obese

A previous study suggested that teenagers need between 7 1/2 - 8 1/2 hours of sleep each night. Now, researchers are suggesting that teenagers may need as much as 9 1/4 hours of sleep each night - and those that aren't getting enough sleep may be in danger of growing [...]

Why insomnia sufferers make the best liars (without even knowing it)

Sleep deprivation affects the brain in a number of ways. Now it would appear that sleep deprivation can lead to the creation of false memories. Researchers at Michigan State University and the University of California, Irvine asked 104 individuals to look at pictures of a crime being committed. One group [...]

When nightmares cause insomnia and depression

I've written about the link between insomnia and depression a number of times. New research has now found then when insomnia is combined with nightmares, symptoms of depression can become even worse. Researchers in Japan found that 71% of study participants with insomnia experienced nightmares 1 or more times per [...]

The reason why sleep deprivation harms memory and learning

It's universally accepted that a lack of sleep harms our memories and makes learning more difficult. Yet, strangely enough, until recently, nobody really knew why. The authors of a new study think they've found the reason: when sleep deprived, our brains produce significantly fewer new connections between neurons. The study [...]