Why do we all need sleep? (Why Do We Need Sleep?) Let's find out this secret!

Have you ever wondered, 'Why is sleep so important to us?'? From babies to school-age children, your parents, grandparents, and even elephants, giraffes, dogs, and cats, every animal in the forest sleeps. Just think, sleep is just like eating and drinking. Sleep is essential to our survival. So, why is sleep so important to us? Let's talk about it in a little more detail , like talking to a friend.

What exactly is sleep? Is it just a way to rest the body?

Many people think that sleep is a time when both our bodies and brains completely 'turn off'. But that's not entirely true. Sleep is not just a state of inactivity. Yes, it's true, our bodies get a break. But our brains? It's constantly working! Just like city cleaners clean the streets at night, our brains also do very important work at night.

There are two main stages we experience during sleep.

1. (NREM - Non-Rapid Eye Movement) Sleep: There are several more stages in this too. First comes light sleep. Gradually, you go into deep sleep. This deep sleep is what brings great rest to the body and brain. The body's cells repair and grow during this time.

2. (REM - Rapid Eye Movement) Sleep: This is the time when we dream. It gets its name because the eyes move rapidly back and forth. This (REM) sleep is very important for storing our memories, consolidating what we have learned, and for mental balance.

These two stages, called (NREM) and (REM), alternate in several cycles throughout the night, going up and down like a wave.

Why is sleep so valuable to us?

To understand how valuable sleep is to us, we need to know about the benefits it provides to our body and brain.

The contribution of sleep to our physical health

• Rest and Repair: After a hard day's work, our muscles and cells become very tired. Sleep is what gives them a break and helps them repair themselves (Cell regeneration). It's like charging your phone.
• Saving energy: When we sleep, our body's activity slows down a bit. This means that we don't expend energy unnecessarily. That saved energy helps us work more energetically the next day.
• Strengthening the immune system: Do you get sick often? One reason for this could be that you are not getting enough sleep. Because, when we sleep, our immune system produces special proteins (called cytokines) that fight germs. So a good night's sleep is like a good shield to protect against diseases.
• Helps with growth: Sleep is very important for the growth of the body, especially for young children and adolescents. When we are in deep sleep , growth hormone is released from our body. This is what helps us grow taller and develop our body.
• Hormone Balance: Sleep helps balance various hormones in our body. For example, sleep is important for the hormone (Insulin) to work properly. Sleep also affects the functioning of the hormones (Ghrelin) and (Leptin) that control our hunger. If we don't sleep properly, these hormones become unbalanced and we feel like eating unnecessarily, which can lead to problems like obesity. This can also affect diseases like (Diabetes Mellitus) or diabetes.

The power of sleep for our mental health and brain function

"Sleep is the best gift you can give to your brain."

• Memory consolidation: How much do we learn and experience throughout the day? All of this is stored temporarily in our brain. Just like a computer's RAM. It is during sleep that we select the important information from this information and store it as permanent memories. We get rid of unnecessary things. It is like cleaning a house.
• Helps with learning and problem-solving: Think about how much easier it is to study and learn something new on a day when you have a good night's sleep. The reason for this is that our brains are sharper during sleep. If you are having trouble solving a problem, there are times when you can think of a solution after a good night's sleep, right?
• Mental calmness and emotional control: Don't you get angry over small things after a day of not getting enough sleep? When we don't get enough sleep, it's hard to control our emotions. Sleep calms our mind and reduces mental stress. A good night's sleep also helps fight conditions like depression and anxiety disorders.
• Brain Cleansing: Recent research has found that while we sleep, a special system called the Glymphatic system is activated in our brain that removes unwanted waste. Just like the garbage truck comes and takes out the garbage at night, this system cleans the brain. This is very important to keep the brain healthy.

What happens if we can't sleep properly?

Now you understand how important sleep is. So, what can happen if we don't get enough, good sleep?

Short-term effects (if you don't sleep well for a day or two)

• I'm tired all day, I feel lifeless, and I'm always nauseous.
• It's hard to focus. I can't keep my mind in one place when studying or doing work.
• Memory weakens. Even small things are forgotten.
• I get angry quickly and get offended by even the smallest things.
• The reaction time increases. This is very dangerous when driving or working with machinery.
• Due to low immunity , illnesses like colds can develop quickly.

Long-term effects (if you continue to not get enough sleep)

This is a serious matter. Continuously getting less sleep can be very harmful to our health.

• The risk of developing chronic diseases increases: There is a greater chance of things like (Obesity), (Diabetes Mellitus), (Hypertension), and heart disease.
• Mental health problems: Conditions such as depression and anxiety disorders may worsen or develop new ones.
• Brain function may be impaired, and learning and decision-making abilities may be impaired.
• Some studies have shown that long-term sleep deprivation may be linked to diseases such as Alzheimer's disease.

Imagine, you have an important exam or a big presentation to give. How can you do those things properly if you haven't slept well? You can't, right?

How much sleep do we really need?

This is something that varies from person to person, especially with age.

• Newborn babies (0-3 months): About 14-17 hours a day.
• Babies 4-11 months: 12-15 hours.
• Toddlers 1-2 years old: 11-14 hours.
• Preschoolers 3-5 years old: 10-13 hours.
• School-age children 6-13 years old: 9-11 hours.
• Young children 14-17 years old: 8-10 hours.
• Adults (18-64 years): 7-9 hours.
• Older adults (ages 65+): 7-8 hours (but sleep patterns may vary, and you may not be able to sleep at night and feel sleepy during the day).

But remember, these are just general recommendations. Some people may need a little less or more sleep than this. The most important thing is to get enough sleep so that you can function well and with good concentration the next day. Also, the quality of sleep is just as important as the number of hours you sleep.

Some tips for getting good sleep (Sleep Hygiene)

Getting a good night's sleep can be a challenge at times. But we can make some changes in our habits and pave the way for a good night's sleep. This is what we call (Sleep Hygiene) .

• Go to bed at a set time, wake up at a set time: Try to go to bed and wake up at the same time every day as much as possible. Try to stick to this schedule, even on weekends.
• Make your bedroom comfortable: Your bedroom should be dark, quiet, and cool . The bed, mattress, and pillow should be comfortable for you.
• Limit caffeine and alcohol in the afternoon and evening: Coffee, tea, chocolate, and some soft drinks contain caffeine. These can disrupt sleep. Although alcohol may initially make you sleepy, it can later reduce the quality of your sleep.
• Avoid heavy meals and excessive fluids at night: Eating to your full stomach and drinking too much water can disrupt your sleep. It is best to eat dinner 2-3 hours before bedtime.
• Create a habit to calm your mind before bed: You can do things like reading a book, listening to soft music, taking a hot bath, or meditating.
• Reduce the use of phones, tablets, and computers before bed: The blue light emitted by these devices reduces the production of the hormone melatonin, which helps us sleep. Therefore, stop using these at least an hour before bed.
• Exercise during the day: Being physically active during the day can help you sleep better at night. However, exercising too close to bedtime can make it difficult for some people to fall asleep.
• If you can't fall asleep while sitting up in bed, get up and do something else: If you can't fall asleep after tossing and turning in bed for about 20 minutes, get up and do something relaxing (like reading a book) for a while, and then go back to bed when you feel sleepy again. Your bed is a place to sleep, not a place to worry.

A question many people ask: "Can I make up for lost sleep on the weekends by sleeping in?"

This is something that many people do. When they can't sleep well during the week, they try to make up for it by sleeping more on the weekends. While this may provide some relief, it doesn't completely make up for the sleep you missed. It's like buying things on a credit card and paying for them later with interest. The best thing to do is to try to get enough, good sleep every day. Consistent sleep is the best thing for your body and brain.

Finally, things to remember

So, now you understand that sleep is not just a waste of time, but how valuable it is to our lives and our health.

Sleep is not a luxury, it is a biological necessity.

• Make your sleep a priority. Just like eating and exercising, make sleep an important part of your daily life.
• Give your body and mind the rest they need.
• If you are having persistent sleep problems, such as insomnia, frequent nighttime awakenings, or excessive daytime sleepiness, you should definitely see a doctor for advice. There may be a condition that can be treated.

Taking care of your sleep is one of the biggest things you can do for yourself. So, let's try to get a good night's sleep starting tonight, shall we?

` Sleep, Need for Sleep, Health, Brain Function, Physical Health, Mental Health, Sleep, Why We Sleep, Health Benefits of Sleep, Brain Function, Sleep Hygiene, REM sleep, NREM sleep