Hours of Sleep, Life Satisfaction & Cognitive Functioning
Cognitive Functioning
RELATIONSHIP BETWEEN HOURS OF SLEEP, SATISFACTION WITH LIFE AND COGNITIVE FUNCTIONING
Relationship between Hours of Sleep and Both of Satisfaction with Life and Cognitive Functioning
Proper sleeping hours are very important for our body's functioning. When a person is sleeping, his body is in the process of repair; thus allowing his brain to have some rest and the needed down time. There are many negative effects of less sleeping hours on the cognitive function as well as life satisfaction of a person.
Just like a proper diet, sleep plays a very essential role in the maintenance of overall health of an individual. Unfortunately, Americans are facing some serious cognitive and life satisfaction problems due to lack of sleeping hours. According to an estimate from U.S. Center for Disease Control & Prevention (CDC), approximately 25% of U.S. citizens have less sleeping hours, while only 10% are subject to insomnia. (National Sleep Foundation, 2005) Additionally, the sleeping hours of an average U.S. citizen has declined from 8-9 hours to 6-7 hours per 24 hours. This lack of sleeping hours in American citizens has resulted in increased mental and physical health problems. Changes in lifestyle and several therapies are playing a major role in healthy and regular sleep of Americans. In human body, pineal glands release melatonin which stimulates sleep. (Kim and Woon 2010)
There are four stages of sleep which can be categorized as eye movement sleep (non-rapid) (NREM1, NREM 2 & NREM 3) and the rapid eye movement sleep (REM). Changes in brain waves and body muscle are the distinguishing factors for these stages of sleep. REM sleep is of high clinical importance and account for 20-25% of human sleep. This...
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