Facts about sleep why do we sleep at night

Facts about sleep why sleep necessary for us

Facts about sleep

Facts about sleep why sleep impotent for us Sleep is an essential part of your daily routine, where you spend about a third of your time sleeping, and without sleep,

you will not be able to form pathways in the brain that allows them to learn and create new memories, or it will be challenging to focus and respond quickly, and control areas Numerous brain regions in the process of sleep

and wake, including those specialized areas: the hypothalamus, which contains groups of neurons that act as control centers affect sleep and wakefulness, in addition to the brain stem (Brain stem) , which is located at the base of the brain,

and plays a role No matter in one of the stages of sleep known as rapid eye movement phase Rapid eye movement sleep (REM sleep), which sends signals to loosen musclesPineal gland increases the production of melatonin, which helps to sleep as soon as the lights go down.

Facts about sleep

Sleep stages are essential There are five stages of sleep during the sleep cycle, and scientists have classified sleep stages based on the characteristics of the brain and the body during it,

and the first four stages are known as non-rapid eye movement sleep  (Non-rapid eye movement sleep (non-REM sleep), while the fifth stage REM sleep is commonly known as brain wave frequencies and amplitudes from

an electroencephalogram to distinguish different sleep stages, along with other biological rhythms, including eye and muscle movements.

Stage 1: The first phase of the sleep cycle begins within minutes and sometimes within seconds of placing the head on the pillow.

The person is fairly alert and can be easily woken up, the slow frequency of brain waves characterizes this stage compared to brain waves during the time of waking, and breathing occurs at an average rate at this stage.

Step 2: This stage is also a stage of light sleep, during which the brain produces sudden increases in the frequency of brain waves known as sleep spindles, and the brain waves begin to slow down, and it becomes more challenging to wake up during this stage. The

third and fourth stages: These stages are the beginning of deep sleep, where the brain begins to produce slow delta waves, and stop the movement of the eye or muscle activity, and become difficult to wake up because the body becomes less responsive to external stimuli, and the brain continues to produce more delta waves during this stage,

It moves into a more in-depth sleep phase, where the body repairs muscles and tissues, stimulates growth and development, boosts immune function, and builds energy for the next day. This phase is known as Slow Wave Sleep.

Very active Not Scona of the brain as previously thought. REM sleep: A person generally enters REM sleep after about 90 minutes of sleep. Each stage of REM can last for an hour. The average number of REM sleep cycles in an adult is five to six. Cycles every night, and it is strange at this stage that the mind becomes more active during it,

and rapid eye movement occurs during that stage as a result of dreams, and increase heart rate and blood pressure, and breathing becomes fast and irregular and shallow, It is worth mentioning that REM sleep plays a role Important in the learning and memory function, where it is done during that

The brain merges phase of the information and processed from the previous day so it can be stored in long-term memory.

Facts about Adequate sleep hours

The number of hours of sleep varies according to age, gender, and pregnancy. For example, women need an additional 20 minutes of sleep per night compared to men, although some women need more,

which may be because women do more tasks than men. They have busier timescales, which leads to their brains using more energy and therefore need more rest. Men with complex jobs that require a lot of decision-making

and lateral thinking needs more hours of sleep than the average man, too. Pregnant women need more rest, and x Pound in the first trimester of pregnancy, which includes more daytime drowsiness due to high

progesterone after the baby is born, new mothers often find that they sleep very quickly because they are deprived of sleep as a result of the baby’s awakening, but mothers cannot enter deeper sleep and

rest periods significantly. Breastfeeding causes sleep more easily, because Prolactin, which promotes breastfeeding, helps to relax.

Facts about the number of hours of sleep by age group:

Newborns to age three months:

Newborns until the age of three months of (14-17) hours of sleep and rest for a period of (11-19) hours is appropriate. Children (4-11) months: This age group needs (12-15) hours and sleep for 10-18 hours is appropriate.

Children aged 1 to 2 years: This age group needs (11-14) hours and sleep for (9-16) hours is necessary. Children (3-5) years: This age group needs (10-13) hours and sleep for (8-14) hours is appropriate.

Children (6-13 years): This age group needs (9-11) hours, and sleep for 7-12 hours is adequate. Adolescents aged (14-17) years: This age group needs (8-10) hours, and sleep for (7-11) hours is sufficient. Young people (18-25) years: This category needs (7-9) hours and sleep from (6-11) hours is appropriate.

Adults (26-64 years): This category needs (7-9) hours, and sleep for (6-10) hours are necessary. Older people, 65 years and over: This category needs 7-8 hours. Sleeping for 5-9 hours is adequate.

Facts, benefits, and importance of sleep

Keeping your heart healthy: Research suggests a link between lack of sleep, high blood pressure and cholesterol,

which are the most critical risk factors for heart disease and stroke, and it should be noted that sleep for 7-9 hours per night helps maintain

On heart health. Reduced cancer risk: People who work in the night shift are more likely to develop breast and colon cancer because exposure to light during the night reduces the levels of the hormone melatonin, which regulates the sleep and wake cycle, which reduces the risk of cancer, and stop

Tumor growth. Reduce Stress and Stress: Lack of sleep causes stress and tension, which leads to higher blood pressure and produce more stress hormones in the body. Reducing inflammation: Increased stress

hormones due to lack of sleep can increase the level of inflammation in the body, increasing the risk of heart disease, as well as cancer and diabetes. Increased alertness and attention: Sleeping long enough

to help you feel active and alert the next day. Memory enhancement: Sleep plays a vital role in the process known as memory consolidation, a process that the brain goes through during sleep and rest, where it

works to address the events of the day that passed with the person, and to establish links between events, sensory inputs, feelings, And memories, so deep sleep is a very important time for the brain to make memories and bonds, and the ability to remember things and process them better.

Help to lose weight: Studies have found that people who sleep less than seven hours a night are at risk of being overweight or obese due to the impact of lack of sleep on the balance of hormones that regulate appetite.

Increased intelligence: Daytime naps help increase productivity and improve memory, cognitive function, and mood. Repair damaged cells in the body: Sleep helps to repair damage caused by physical stress or exposure to ultraviolet radiation and other harmful substances that are exposed during the day.

Improving blood sugar: Deep sleep helps lower blood sugar, reducing the risk of type 2 diabetes. Boosting the work of the immune system:

Lack of sleep affects the function of immune system cells specializing in resistance to harmful bacteria, viruses, and other germs, increasing the chance of developing diseases more.

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