Here’s why the body needs 8 hours of sleep every night

With changing lifestyles, it is important to get the right amount of sleep every day. The lack of good amount of sleep can affect the physical wellbeing of an individual leading to infectious as well as lifestyle diseases

Sleep is an essential function that helps in recharging our bodies and minds. Moreover, healthy sleep also helps the body in remaining fit and it staves off any diseases. When we do not get enough sleep, our brain does not function properly and it can impair our abilities to concentrate, think clearly and process memories. An adequate amount of sleep that an adult requires ranges from seven to nine hours. 

However, work schedules, day-to-day stressors, a disruptive bedroom environment and medical conditions can prevent us from receiving adequate and peaceful sleep. Hence, a healthy diet and good lifestyle habits can ensure a good amount of sleep each night. However, for some people chronic lack of sleep may be a sign of a sleep disorder. 

Sleep reflects one's state of mind and overall health in general. A good sleep is one which is age appropriate in duration, qualitatively divided into various sleep stages of adequate periods and which eventually makes a person feel refreshed in the morning and through the day. Although there is a wide variation in the amount of total sleep required by healthy adults to maintain a good daytime function, it is widely accepted that a good, consolidated 8 hours of uninterrupted night-time sleep is essential for majority of adults. An adequate amount of sleep duration is extremely important to maintain good mental and physical health. A sleep-deprived person often experiences decline in cognitive function, poor memory, inability to concentrate on tasks at hand and easy irritability with frequent mood swings. Even if the sleep duration is adequate, an interrupted and disrupted sleep with poor sleep quality devoid of deep sleep is also associated with excessive daytime sleepiness with declining cognitive function. 

Lack of good sleep, both in terms of duration and quality, can adversely affect the physical wellbeing with such individuals being more prone to develop both infectious as well as lifestyle related diseases. With the millennial generation adopting a 24-hour lifestyle without any defined periods of sleep, increase in the total screen time during Covid-19 lockdowns due to exponential increase in online classes and meetings, and poor sleep hygiene, have all resulted in a variety of sleep disorders. Ultimately, this very important aspect of keeping people healthy is not only being ignored but also leading to abuse of sleeping pills, alcohol and smoking. With rising stress levels and a constant pressure to meet deadlines, it is extremely important to maintain a work life balance and give oneself adequate opportunity and time to have a good night sleep. If anyone experiences any kind of sleep related issues, these should be brought to the immediate notice of the sleep physicians and expert opinion must be taken for timely diagnosis and management. 

All in all, sleep is good and necessary. For adults, getting at least seven hours of sleep ensures proper daytime functioning which involves being alert for the day and being able to concentrate and not moody and tired through the day. Creating a night time routine that ensures that your mind and body are relaxed can be helpful in ensuring a good sleep for all individuals.

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