“Is Sleep Really that Important?”
By: Karen Zoulau
Going 24 hours without sleep is one of the most harmful things you could do to your body. If you pull an all-nighter, you will be cognitively impaired . Even going 17 hours without sleep can lead to poor judgement, poor memory and poor hand-eye coordination skills . Irritability becomes more likely , you feel more tense  and emotional , your pain receptors are much more sensitive , and you start having difficulty hearing . When your body notices what you are doing to it, it responds to the lack of sleep you give it, and starts producing more stress hormones and ceases glucose metabolism . After you keep this up for a long time, still not sleeping enough, you brain can enter a state called “local sleep” . Local sleep is where parts of your brain are shutdown and resting, while others are still active . If local sleep is still not enough, your brain will start forcing micro-sleeps . Micro-sleeping is very similar to zoning out . Micro-sleeps occur when the brain cannot prevent sleep anymore, being forced to rest .
Sleeping late has a lot of negative effects too. If you sleep late often, and develop a habit of sleeping late and missing sleep occasionally, your chances of developing heart diseases increase , your cancer risk increases , your risk of diabetes increases, your diabetes management decreases , and you have a 3x higher chance of getting into a car accident . This can confuse your natural circadian rhythm, also known as body clock, creating long naps in the afternoon, a bad habit . Your eye bags can appear to be more visible , you have higher blood pressure , and you have higher risks of getting depression .
There are a lot of negative impacts from both going long hours without sleep and sleeping late. Consequently, these both can take a large toll in your body and impact your ability to learn in school, or your ability work in a professional environment. So go on ahead and get some extra rest, you deserve it.