Sleep is the state in which our mind and body relax. All living beings need to sleep to give rest to their body and prepare it for the next day. It is as necessary as to eat and breathe. Sleep is a process during which plenty of significant processing, repairing, and consolidation occurs. Deprivation of sleep can lead to serious health consequences. It can affect the memory, the ability to learn and remember. Till date, scientists have not been able to find the exact reason behind why people sleep. But one thing is for sure that human need to sleep to survive and for the proper functioning of the brain. Let’s have a look at some of the important aspects why humans require sleep.
Helps Brain to Function Properly
Sleep helps our brain to relax and work properly. It gives the brain the opportunity to rearrange information; process newly acquired information and stores the memories. A sound sleep improves the concentration, helps in making important decisions and enhances the creativity. People who sleep well are considered to be highly productive and excellent performers compared to those who are deprived of sound sleep.
Essential for Good Physical Health
A good sleep saves you from the risk of serious diseases such as heart disease, diabetes, kidney disease, etc. It balances the hormones that affect hunger in humans i.e. ghrelin and leptin. Ghrelin is the hormone that stimulates appetite and leptin suppress it. People who get enough sleep consume fewer calories compared to those who don’t. Deep sleep releases the hormones that promote growth and development of the human body. It also improves the immune system to fight against harmful substances.
Reduces the Risk of Depression
Insomnia is one of the biggest factors that can trigger depression in humans. People who suffer from sleep disorders are not able to process and rearrange their thoughts, which leave their brain restless and can lead to depression. Individuals who enjoy good sleep every night are less likely to suffer from depression. It helps their brain to function actively and doesn’t let negative or depressing thoughts to occur.
Improves Performance throughout the Day
Getting enough sleep helps people function well throughout the day. It makes them feel active, puts in a good mood, and improves their productivity. After getting sound sleep, people can concentrate better and feel energized while performing daily tasks.
Conserves Energy in the Body
During sleep, a person’s metabolic rate lowers, this decreases the energy consumption in the body. The conserved energy is utilized by the humans while performing the physical and mental tasks at day time.
Keeps the Heart Healthy
The quality of sleep profoundly affects the cardiovascular system. A sound sleep keeps your heart healthy and saves it from several heart diseases such as heart failure, high blood pressure, stroke, etc. People with high blood pressure are suggested to get an adequate sleep of at least 7-8 hours to keep it under control.
People who wish to achieve a healthy life need to take proper care of their sleep along with the nutritional diet and exercise.