"daylight saving time: in the spring when we lose an hour of sleep, we see a subsequent 24 percent increase in heart attacks. In the fall when we gain an hour of sleep opportunity, there is a 21 percent decrease in heart attacks."
"In the brains of mice, sleep deprivation led to cell death after a few days of sleep restriction — a much lower threshold for brain damage than previously thought. It also caused inflammation in the prefrontal cortex and increased levels of tau and amyloid proteins, which have been linked to neurodegenerative diseases like Alzheimer's and Parkinson's, in the locus coeruleus and hippocampus. After a full year of regular sleep, the mice that previously had been sleep-deprived still suffered from neural damage and brain inflammation."
"studies published over the past 15 years have relied on behavioral changes and self-reported sleep data to link chronic bad sleep to dementia, depression, metabolic issues, cardiovascular disease, insufficient immune response and even lower grade-point averages. These experiments can be difficult to confirm, but, taken together with findings in animal models, they hint that there is some sort of long-term relationship between a lack of sleep and physical and cognitive damage."
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