![]() Narcolepsy – is extreme tiredness with intermittent sleepiness during the day, which can include involuntary napping.Working night shift can mimic the symptoms of jet lag. Jet lag – a different time zone throws off the body’s internal clock, which takes a few days to reset.It is the most common sleep disorder in adults. Insomnia – refers to difficulties in getting to sleep or staying asleep.Some of the more common sleep complaints include: It is important to get the right mix of both REM and non-REM sleep to maintain your natural sleep cycle and help you wake rested and refreshed.Ĭommon sleep disordersSleep is a complicated state of consciousness, since it can be disturbed in so many ways. REM sleep is associated with dreaming and with stimulation of the parts of the brain used for learning, while body repair and growth tends to happen during non-REM sleep. ![]() REM sleep occurs regularly, about once every 90 to 120 minutes.īrain waves in REM sleep are faster than in non-REM sleep. Generally, the brain moves from light sleep to deeper sleep and eventually to rapid eye movement, or REM, sleep. ![]() We all go through various distinct stages of sleep, over and over, every night. Sleep stagesSleep isn’t a static state of consciousness. In the morning, exposure to daylight prompts your brain to reduce ‘sleepy’ and release ‘awake’ chemicals. When the sun sets, your brain starts to release ‘sleepy’ chemicals, until eventually you feel the need to retire for the night. The body clockSleep is regulated by an internal ‘clock’, which is tuned by the day-night cycles (circadian rhythm). Newborn babies tend to sleep for around 16 hours out of every 24, while adults average eight hours and the elderly sleep a little less. Generally, we sleep less as we age and our sleep tends to be more broken. People vary in the amount of sleep they need, depending on their age, lifestyle, diet, personality and environment. It is a period of rest and recuperation for the body and much needed ‘down time’ for the brain. Sleep is a state of consciousness that happens every 24 hours. ![]()
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