It is generally practices in daily life that most of the work is done in daytime and take rest while sleeping at night. An individual whose work schedule is in the day should have good sleep at night to maintain body metabolism. It is important to maintain natural sleep and wake up cycle for good health. During the day, we our brain is stressed constantly and we also get physically tired. So relaxation of our body and brain is very important for gaining energy and refreshment. So it is necessary to sleep at night which results in increased energy and improved heart and immune system. Night sleep is a basic biological necessity just like eating and daily activities
It has an impact on every aspect of our health and life. If we do not get good sleep at night, we will feel tired during the day. Seven hours sleep at night is healthier for long life. Poor sleep at night can increase the body’s energy needs. At night, need of calories is reduced. When we are sleep deprived, brain will release chemicals for signal of hunger. This will lead to eating more and resulting gaining weight.
Researchers have found that those who slept less than six hours at night are likely to experience premature death. When we sleep at night our immune system releases compound called Cytokines. Some cytokines have protective effect on our immune system which helps to fight infection.
In this discussion we can find that a person works hard in the day and get physically and mentally tired. If the person did not sleep at night, he feels tired and affect the daily activities so it is important to sleep at night for 7-8 hours for our good health and gain energy for the next day.