Do We Need Sleep?

1051 Words5 Pages
What exactly goes on in the brain during sleep? Nerve-signaling chemicals called neurotransmitters, control whether we are asleep or awake by acting on different groups of nerve cells, or neurons, in the brain. Neurons in the brainstem, which connects the brain with the spinal cord, produce neurotransmitters such as serotonin and norepinephrine that keep some parts of the brain active while we are awake (http://www.ninds.nih.gov/disorders/brain_basics/understanding_sleep.htm). So why do we need sleep? Sleep is important to the essence of every person. Sleep offers the brain an opportunity to sort through new and old information, to find solutions to problems, and to archive memories. One of the essential roles of sleep is to help us solidify and centralize our memories. As we go about our day, our brains take in a very large amount of information. This information is not directly recorded, it’s rather that these facts and experiences first must be processed and stored; and most of this processing happens while we sleep. The brain reinforces memory and categorizes everything learned and removes any useless information. This paper will cover how lack of sleep can be detrimental to a person. The primary symptoms of sleep deprivation that will be discussed are dangerous health issues such as cognitive dysfunction, weight gain and physical health. The central nervous system is the information highway of the human body. To keep it functional sleep is a must. Sleep deprivation
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