During sleep, our brains will refresh every 20 seconds. When you sleep at night your body cycle length varies from 70 to 120 minutes each, sleeping hours will be 7 to 9 hours a day for ordinary humans to begin. The fluid in the brain is known as the ocean tide. That fluid will protect the brain and spinal cord. Small waves of fluid flow through the brain of people who are awake. This wave is connected to a breathing pattern. High velocity while we are sleeping sweeps the brain. Oxygen level in the brain blood falls when blood is leaving the brain. We need sleep to save energy. Sleep allows us to lose weight inexpensively.
Motivation of sleep
- The brain will store information to eliminate toxic waste.
- Nerve cells transmit and change, which promotes healthy brain function.
- The body cleanses our blood cells and gives back its energy. And mainly, it lets out the bits and pieces known as hormones and proteins.
How much sleep does a person need?
Ever since the age factor plays a major role, it also differs from one person to another. A human being needs 8 hours of sleep to save energy. The theory of energy-efficient sleep is reduced. Human energy is used day and night. Sleep will affect many functions in the brain such as learning, memory, problem-solving skills, creativity, decision making, and concentration. Also, sleep is important for all aged people.
- Energy conservation.
- Cellular restoration.
- Brain function.
- Emotional well-being.
- Weight maintenance.
- Proper insulin function.
- Heart health.
Two major phases of sleep
1. Non – Rapid eye movement
STAGE 1 – We fall asleep first and our body goes into light sleep and everything slows down for about 7 minutes.
STAGE 2 –These involve light sleep just before deep sleep. Did you know that it may lower our bodily movements? After that, the muscles continue to relax. We all are in stage 2 at night.
STAGE 3 – In these phases 3 and 4 deep sleep begins, eyes and muscles do not move and brain waves slow down. After this process, you feel awake the next day.
2. Rapid eye movements(REM)
In this phase, you fall asleep after 90 minutes, and your eyes move rapidly from side to side. Moreover, brain waves and eye movements increase causing breathing also speeds up. So these happen during our dreaming. The brain also helps to process information during this stage.
Brain activity takes on a rhythmic flow as we drift away because of electrical waves in neurons and cerebrospinal fluid. This amazing thing shields the brain. In addition, it cleans our brains while we sleep 7 to 8 hours at night. Keep your room dark and peaceful while sleeping. Avoid eating meals for 2 to 3 hours before going to bed. Sleep is important for the brain and its functions.