A ruffled mind makes a restless pillow, so says Charlotte Bronte. Studies have linked sleep problems with a multitude of psychiatric conditions. Some medical professionals would say a lot of mental problems are caused by lack of sleep, and some would say that its the other way around, that psychiatric problems cause difficulty sleeping. But how is sleep related to your mental health?
Sleep
Sleep is the natural state of rest observed not only by human beings but also by other species of the animal kingdom. Regular sleep is vital for ones health and survival. This is characterized by a loss of consciousness, reduced voluntary body movement, decreased reaction to external stimuli, an increase rate of anabolism (cell synthesis), and a decreased rate of catabolism (cell breakdown).
Sleep consists of five stages. The first four stages are called non-rapid eye movement (non-REM) sleep. The last stage is the rapid eye movement (REM) sleep. Stage one is the transition from wake to sleep. Stage two is an intermediate level of sleep. Stages three and four are referred to as deep or slow wave sleep, with stage four as the deepest stage of sleep. The fifth stage...
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