But sleep is just as essential for your body. I can tell you about sleep loss and your cardiovascular system, and that all it takes is 1 hour. Because there is a global experiment performed on 1.6 billion people across 70 countries twice a year, and it’s called daylight saving time. Now, in the spring, when we lose one hour of sleep, we see a subsequent 24% increase in heart attacks that following day. In the autumn, when we gain an hour of sleep, we see a 21% reduction in heart attacks. And you see exactly the same profile for car crashes, road traffic accidents, even suicide rates.
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Sleep is our life-support system and Mother Nature’s best effort yet at immortality, says sleep scientist Matt Walker. In this deep dive into the science of slumber, Walker shares the wonderfully good things that happen when we get sleep - and the alarmingly bad things that happen when we don’t, for both our brain and our body. Spoiler alert: Sleep like your life depends on it.
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