Sleep disorders
Sleep disorders Sleep disorders are broadly classified into dyssomnias, parasomnias, circadian rhythm sleep disorders involving the timing of sleep, and other disorders, including those caused by medical or psychological conditions. Sleep is a state of rest that occurs in most animals, including humans. During deep sleep, most of the muscles that animals can otherwise control are inactive, but they regain energy for the next time they wake up. Animals during sleep are usually in an unconscious, relaxed state. When the underlying cause of sleep problems is not immediately apparent, behavioural treatments are typically the first recommended. These range from patient education about sleep hygiene to cognitive behavioural therapy (CBT). Studies of bot h younger and older adults have compared CBT to medication and found that CBT should be considered a first-line and cost-effective intervention for chroni...