Health and Me

Aarushi Bhadury

Neurologist Reveals 3 Ways You Are Hurting Your Health When You Sleep Less Than These Many Hours

In a recent post, a neurologist reveals that losing sleep doesn’t just make you feel ‘sleepier’ but can have severe effects on your health as well. 

<span>Sleep deprivation</span> is not uncommon. About one in five people in the UK are not getting enough sleep, according to Mental Health UK. They state that 66% of adolescents explain how poor sleep negatively impacts their mental health, and 37% of adults explain that their work is causing them to lose control over how much sleep they are having. Most people know how lack of sleep can affect their health; however, many times pre-existing health conditions can also be the cause of their sleep deprivation. 

Whether you are sleeping less due to work or stress, it is very important to get help with it as soon as possible. Posting on social media X, Dr <span>Sudhir Kumar</span>, a Hyderabad-based neurologist, explained how sleep deprivation puts your body at risk, not just by harming your mental/psychological well-being but also puts you in life-threatening danger. 

<h2>What Happens To Your Body When You Sleep Less? </h2>

Dr Sudhir Kumar explains that getting less than 4 hours of sleep for even just one night is a big deal. It has major, noticeable effects on your memory, how well you pay attention, and your ability to drive safely. In fact, being sleep-deprived is similar to being slightly drunk. This isn't just a feeling; it's proven by science. 

<h2>3 Ways <span rel="noindex">Less Sleep Is Hurting Your Health</span> </h2>

In the post, Dr Sudhir listed 3 key ways your health is affected when you sleep less than 4 hours at night. 

When you don't sleep enough, your memory takes a huge hit. Working Memory is a part of your memory you use for quick thinking, like solving a problem, making a decision, or remembering a phone number just long enough to dial it etc., is called working memory. When you're severely tired, this working memory drops dramatically, making simple tasks feel hard. 

 The key areas in your brain that build and pull up memories like the prefrontal cortex and hippocampus actually show less activity when doctors look at them with brain scans. They aren't working as hard as they should be. 

Because of these changes, you will likely find it difficult to learn new things, keep up with a fast conversation, or remember details you were taught earlier that day. 

Your ability to concentrate and stay alert is unreliable when sleep deprived. You will start experiencing microsleeps, which is when you can experience tiny, involuntary lapses at attention. You might literally doze off for a few seconds without even knowing it, especially when doing something boring or repetitive. 

When your brain gets tired, leading to slower reaction times and a general feeling of mental fatigue. This makes it much harder to focus for long periods or try to do two things at once. 

You tend to make more impulsive, which is quick, not well-thought-out decisions. As a result, the number of mistakes you make shoots up sharply. 

Driving when severely tired is dangerously similar to driving drunk. If you drive after sleeping less than 4 hours, your performance behind the wheel is like that of someone with a Blood Alcohol Concentration (BAC) of 0.08%. This is the legal limit for drunk driving in most places! 

 You have a much higher chance of drifting out of your lane, taking too long to hit the brakes, or missing traffic signs or lights entirely. 

Research proves that drowsy driving causes thousands of car accidents every year. Sometimes, the driver doesn't even remember the crash because they were experiencing one of those dangerous microsleeps.

Not getting enough sleep is like putting your brain under the influence of alcohol. It messes up your attention, memory, and physical coordination.

The important rule is this: Do not drive or use heavy machinery if you have slept for less than 4 hours. Your ability to react quickly and make smart, safe decisions cannot be trusted.

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In a recent post, a neurologist reveals that losing sleep doesn’t just make you feel ‘sleepier’ but can have severe effects on your health as well. Sleep deprivation is not uncommon. About one in five people in the UK are not getting enough sleep, according to Mental Health UK. They state that 66% of adolescents explain how poor sleep negatively impacts their mental health, and 37% of adults explain that their work is causing them to lose control over how much sleep they are having. Most people know how lack of sleep can affect their health; however, many times pre-existing health conditions can also be the cause of their sleep deprivation. Whether you are sleeping less due to work or stress, it is very important to get help with it as soon as possible. Posting on social media X, Dr Sudhir Kumar, a Hyderabad-based neurologist, explained how sleep deprivation puts your body at risk, not just by harming your mental/psychological well-being but also puts you in life-threatening danger. What Happens To Your Body When You Sleep Less? Dr Sudhir Kumar explains that getting less than 4 hours of sleep for even just one night is a big deal. It has major, noticeable effects on your memory, how well you pay attention, and your ability to drive safely. In fact, being sleep-deprived is similar to being slightly drunk. This isn't just a feeling; it's proven by science. 3 Ways Less Sleep Is Hurting Your Health In the post, Dr Sudhir listed 3 key ways your health is affected when you sleep less than 4 hours at night. Memory Becomes Muddled When you don't sleep enough, your memory takes a huge hit. Working Memory is a part of your memory you use for quick thinking, like solving a problem, making a decision, or remembering a phone number just long enough to dial it etc., is called working memory. When you're severely tired, this working memory drops dramatically, making simple tasks feel hard.  The key areas in your brain that build and pull up memories like the prefrontal cortex and hippocampus actually show less activity when doctors look at them with brain scans. They aren't working as hard as they should be. Because of these changes, you will likely find it difficult to learn new things, keep up with a fast conversation, or remember details you were taught earlier that day. Focus and Alertness Fades Your ability to concentrate and stay alert is unreliable when sleep deprived. You will start experiencing microsleeps, which is when you can experience tiny, involuntary lapses at attention. You might literally doze off for a few seconds without even knowing it, especially when doing something boring or repetitive. When your brain gets tired, leading to slower reaction times and a general feeling of mental fatigue. This makes it much harder to focus for long periods or try to do two things at once. You tend to make more impulsive, which is quick, not well-thought-out decisions. As a result, the number of mistakes you make shoots up sharply. Driving Becomes Risky Driving when severely tired is dangerously similar to driving drunk. If you drive after sleeping less than 4 hours, your performance behind the wheel is like that of someone with a Blood Alcohol Concentration (BAC) of 0.08%. This is the legal limit for drunk driving in most places!  You have a much higher chance of drifting out of your lane, taking too long to hit the brakes, or missing traffic signs or lights entirely. Research proves that drowsy driving causes thousands of car accidents every year. Sometimes, the driver doesn't even remember the crash because they were experiencing one of those dangerous microsleeps.Not getting enough sleep is like putting your brain under the influence of alcohol. It messes up your attention, memory, and physical coordination.The important rule is this: Do not drive or use heavy machinery if you have slept for less than 4 hours. Your ability to react quickly and make smart, safe decisions cannot be trusted.