Why do we need sleep?

Sleep is very important part of our life without sleep, we cannot perform well. That’s why sleep is more important than anything, because without a good amount of sleep, you won’t function perfectly, and your mental abilities as well as your physical abilities to perform and engage in activities will be calmed. That’s why a good amount of sleep is very necessary. Your muscles will be rebuilt, and all of your damaged body tissues are going to be repaired. There are many toxins that poison your body during sleep.

Most of the development of the body occurs during sleep. Sleep is very vital for your hormones because all of your neurotransmitters and genetic receptors are renewed and grow during sleep. Without sleep, your circadian rhythm won’t be correct, and your biological clock will be badly affected. That’s why your sleeping mechanism includes all these activities and performs all these functions that are very good for your health. That’s why sleep is a necessity, and the amount of sleep is also very necessary.

How many hours of sleep do you really need?

Your sleeping patterns are based on your circadian rhythm and the biological clock present in your body. All human beings and living organisms have biological clocks built into their bodies that are stimulated through their circadian rhythm. Your biological clock runs a 24-hour schedule normally, and it affects your different body functions, including your muscle growth, muscle repair, stress management, and all of your inner body functions. Therefore, you have a proper sleeping and waking pattern, building yourself up.

Your biological clock works when there is a bright light and the sun rises automatically. Your body starts releasing the cortisol hormone that triggers a weakness and tells you to do work all the day you work after evening your body starts lowering the level of cortisol and starts releasing melatonin. Melatonin is the specific hormone that is responsible for sleeping and slowing down your body, and all the processes smell, tone, and release occur when sunsets and darkness appear and sleep are triggered by darkness.

What amount of sleep is needed by different age groups?

There are different requirements for every person for sleep. According to the latest research and by healthcare professionals, the ideal sleep time should be 8 hours for adults, but it varies for different body metabolisms and different age groups as well. That’s what happens when, officially, many doctors recommend sleep durations between 7:00 and 9:00 hours, so there are also different factors on which sleep time depends.

The amount of sleep required by different age groups is as follows:


The required amount of sleep for newborns is 14–17 hours per day because newborns require a lot of sleep to repair and develop their inner muscles and bones properly. Their growth hormone levels are at their peak to increase the development and growth in their body quickly, so that’s why they required this amount of sleep.


The city is pretty quiet for infants, who spend 12 to 15 hours a day. Infants are also at the development stage of their lives, and they need to develop a lot, so that’s why sleeping that much is a necessity for them.

School-age children

These children require at least 9 or 10 hours of sleep a day because they are also at their peak when hormones and brain developmental stages are going on, and the children need a lot of sleep to recover their previous body efforts and muscles and also to develop their brain.

At this age, the prefrontal cortex of the brain is developing. That’s why sleeping for 9 to 10 hours will help the brain’s development and improve the logical thinking of the child.


This group of young people required 7 to 9 hours of sleep a day.  Teenagers can sleep for more than 10 to 12 hours because, at this stage of life, a lot of hormonal changes are going on. That’s why sometimes sleeping mode is necessary for them.


Adults require 7 to 8 hours of sleep per day because many doctors recommend that 7 to 8 hours is a very good and necessary amount of sleep for adults to perform well in life.

On which factors does your sleep time depend?

There are different factors on which sleep time depends, because everyone requires a different amount of sleep according to their metabolism. The following are the factors that affect sleep:


Genetics also play an important role in sleeping because people with good genetics really don’t maintain their quality of sleep and require more sleep. People with good genetics work and perform better during low hours of sleep, so their genetics play a role.


Lifestyle depends on how much you sleep and how many hours you really need to sleep. Night shift workers have bad sleeping patterns or lifestyles, so that’s why you need to adopt a good lifestyle and need to avoid bad sleeping patterns in real life,  to get a proper amount of sleep

Anxiety and stress levels

Your stress level determines how much you sleep, because stress plays a vital role and affects your sleep badly. If you manage your stress levels, your sleep quality improves a lot and if you don’t manage your stress. You need to avoid issues like anxiety and stress that helps you with proper brain functioning and provide good sleep.

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