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Scientists Have Figured Out How Our Brains Sharpen Our Memories While We Sleep

New research affirms the idea that sleep is a necessary process for brain activity and, specifically, memory. According to Science Alert, it’s now evident that sleep “allows us to ‘prune’ our memories” and fine-tune our daytime lessens, including using sleep to forget certain things.

Even as the mysteries of the nature of and need for sleep continue to fascinate us, we are learning more and more about how sleep is essential to the very being of our waking life. For example, people who sleep less than seven hours a night have an increased risk of heart disease, regardless of other factors that influence heart health, like age, weight, smoking and exercise habits.

Other concerning physiological changes that we experience due to sleep deprivation include an increase in blood pressure, heart rate and thyroid hormones. Not only that, sleep deprivation may not only quadruple your risk of a car accident while you’re driving, but has played a role in many catastrophic events, including Chernobyl, Three-Mile Island, the Challenger explosion and more.

If you have trouble sleeping, now is the time to take action to get a better night's rest. Perhaps the most important natural "trick" of all for improving your sleep is to make sure you're getting proper exposure to bright light during the day and no exposure to blue light at night.

You can block blue light with amber-colored glasses and dimming your lights (whether they're LED, incandescent or compact fluorescent lamps [CFLs]) and turning off electronic devices at least one hour before bedtime.
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