Sleep deprivation can kill you - here's what sleeping less than 7 hours per night does to your body and brain
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About a third of US adults don't get enough sleep.Unfortunately, sleep deprivation has serious consequences for your brain and body.Advertisement
Many people think they can get by on less than seven to nine hours per night - the amount of sleep doctors recommend for most adults - or say they need to sleep less because of work or family obligations.
Musk posted his response on Twitter at 2:30 a.m.: "I just got home from the factory. You think this is an option. It is not."Musk seems to understand that working 120-hour weeks is harmful. As sleep expert and neuroscientist Matthew Walker previously told Business Insider, "the shorter your sleep, the shorter your life."The vast majority of adults need seven to nine hours of nightly sleep, and kids have to get even more, though needs do vary from person to person. Some incredibly rare people can actually get by on a few hours of sleep per night, while others on the opposite end of the spectrum are sometimes called "long sleepers" because they need 11 hours nightly.Advertisement
But regardless of your body's clock, a lack of sleep will cause your physical and mental health to suffer.
Here are 30 health consequences of sleep deprivation.
Sleep deprivation is linked to higher risk for certain cancers.
Skin doesn't heal as well from damage when you are tired, leading to skin aging.Advertisement
Tired people have a harder time controlling their impulses, which leads to unhealthy behavior and weight gain.
People feel more lonely after sleepless nights — and being lonely makes it harder to sleep well.Advertisement
Being sleepy makes it harder to learn and disrupts short-term memory.
Long-term sleep deprivation also seems to damage long-term memory.Advertisement
A growing body of evidence links bad sleep with signs of Alzheimer's in the brain.
Heart disease risk rises with sleep deprivation.Advertisement
Sleepiness leads to irritability.
The longer people go without sleep, the harder it is for them to see clearly. People sometimes experience hallucinations when sleep deprived.Advertisement
Sleep-deprived people have slower reactions.
So it's no surprise that sleepiness makes people clumsier.Advertisement
The immune system doesn't work as well when you're tired.
Similarly, over-tired people are more susceptible to colds.Advertisement
Being tired drains your sex drive and makes it harder to perform.
Sleepy people express more unhappiness and signs of depression.Advertisement
Risk of Type 2 diabetes rises when people are over-tired, even for non-overweight people.
Tiredness is associated with bad decision-making that puts lives and finances in danger.Advertisement
Sleepy people are more easily distracted.
Tiredness makes it hard to speak normally.Advertisement
Driving tired leads to more car accidents, like driving drunk.
Tiredness is connected to urine overproduction.Advertisement
You need sleep for muscles to get stronger. Without it, muscle atrophy occurs.
Sleepiness makes pain harder to cope with.Advertisement
Tiredness leads to gastrointestinal issues.
Sleepiness is associated with headaches.Advertisement
Disrupted sleep cycles lead to more inflammation, which could worsen asthma, arthritis, and cardiovascular disease.
If snoring or sleep apnea is causing sleep disruption, that could lead to serious health problems.Advertisement
Poor sleep disrupts genetic activity, which may explain some of the health risks of getting too little rest.
At any given time, people who haven't gotten the right amount of sleep are more likely to die.Advertisement
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