Why Do We Need Sleep? – 8 Important Factors for Sleep

Reviewed by: | Author: Manoja Kalakanti

Sleep is a vital process to maintain good health and well-being in your life. Getting the right amount of sleep is rather important to help protect your physical health, mental health, safety and quality of life. The mood you wake up with depends on the quality of your sleep. While you sleep, a lot of functions take place in the body that make you refreshed and ready for the next day. For teenagers and young children, sleep helps in growth and development. If there is a deficiency in your sleep, it can harm you in the course of time. Lack of sleep or improper sleep can cause irritability, sickness and poor concentration. Sleep is a state where there is reduced sensory stimulation, motor activity and stress levels.

Why Do We Need Sleep?

For every person, sleep is the only natural remedy to be relieved from stress. To help in the normal functioning of the systems in the body sleep is necessary. Though it is not a dynamic process, proteins are released from the cells for growth and tissue repair. Some of the benefits of sleep are:

Why Do We Need Sleep?

Healthy Heart

You will be in a risk of increased cholesterol and blood pressure levels if you lack a good night’s sleep. This increase will provoke heart strokes or diseases. According to a Research, people who have at least 7 to 9 hours sleep everyday have controlled blood pressure and cholesterol levels.

healthy heart for sleep

Weight Loss

People who have less than 7 hours of sleep everyday are likely to be overweight. The levels of leptin and ghrelin in the hormones which are responsible for controlling the appetite are disturbed due to the lack of sleep. You tend to feel hungrier, when you do not get a good rest. If you lose even one hour of sleep it adds to the risk of becoming obese.

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Brain Function

By having a good night’s sleep, your brain will start functioning properly. The brain activity is reduced while asleep and prepares itself for the next day, it enhances the memory power. It also improves learning and increases problem solving skills. It reduces the risk of depression, suicides and risk taking behavior. You can also cope up with change in the environment, emotions and behavior. Children who have sleeping deficiency usually throw tantrums, feel impulsive, sad, depressed or angry. A proper sleep can help in paying attention at school.

sleep is mandatory to foster good health and wellness.

a) Smart Function

A short nap during the day acts as a refreshing and effective alternative to caffeine and makes your day more productive. The mind regains focus and can tackle mental challenges easily. It accelerates creativity, you will observe most of the ‘Eureka’ moments occurring after your naps.

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b) Memory Function

Your brain makes connections between experiences, memories, events and feelings during your sleep. Your memory is consolidated in your sleep. It is the most essential time to give a shape to the memories and make the connections, to retrieve in the future.

Physical Improvement

Overall healing and repairing takes place during your sleep. Heart and blood vessels help to reduce the risk of heart disease, diabetes, high blood pressure and kidney disease. It also affects the hormone that control blood sugar levels. You can maintain the level of blood sugar by sleeping well. It also reduces the risk of diabetes. Playing a major role in fertility and puberty, it also boosts up muscle mass. Your immune system works well and defends harmful substances from entering the body.

muscle building exercises


You become refreshed and active for the following day, if you sleep well. You are more likely to smile and have a good day. One good sleep in the night will help you get a better sleep for the next day.


Lack of sleep can make your day stressful. There is increased blood pressure and this produces more stress hormones. These stress hormones make it harder to sleep. Proper sleep can break this cycle of stress and give you a peaceful and gentle mind.


Reduces Chronic Inflammation

Due to the increase in stress hormones, you can experience a few chronic inflammation disorders, such as periodontitis, rheumatoid arthritis, atherosclerosis, cancer, diabetes or heart-related conditions. Chronic inflammation also takes place due to aging. You can avoid all the above problems if you manage to sleep for at least 7 to 8 hours every day.

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Replenishes Body

You need to give some time for the body to repair the damages caused by ultraviolet rays, stress and other exposures. This can only take place while you sleep, when the whole body is relaxing and the proteins have a chance to connect the tissues.

Replenishes Body

Millions of people suffer from sleep disorders. Most of these sleep disorders are undiagnosed and untreated. Using natural methods to tackle this situation is extremely important. As there are many important functions that take place during your sleep, try to take a good nap and refresh yourself. Children need at least 9 hours of sleep and adults need at least 7 to 8 hours. What are you waiting for? Get your beauty sleep immediately!

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