The effects range from being excessively exhausted to increased risk to the development of heart disease and obesity. Think of it this way, the brain is the powerhouse that runs your body, sort of like an industry controlling all functions and for it to run at optimum capacity, it needs to recharge every now and then.
The bottom line is, when you don’t sleep well, you don’t live well.
Sleep architecture follows alternating patterns of REM and non REM throughout a typical night which repeats itself about every 90 minutes. For 75 percent of the night, your body is in non REM sleep which is composed of four stages. Stage one consists of light sleep, stage two is the onset of sleep where we become disengaged from our surroundings; three and four entail the most involving part of sleep with tissue growth, growth hormone release, muscle relaxation and energy restoration. REM sleep which takes up 25 percent first occurs about 90 minutes after falling asleep recurring every 90 minutes getting longer later in the sleep cycle; REM provides energy to the body.