Some of the symptoms of sleep apnoea include: severe sleep apnoea – more than 30 interruptions per hour.moderate sleep apnoea – between 15 and 30 interruptions per hour.mild sleep apnoea – between 5 and 15 interruptions per hour.normal sleep – fewer than 5 interruptions per hour.The severity of sleep apnoea depends on how often your breathing is interrupted. People with narrow throats are more likely to have sleep apnoea and snore during sleep as their throat muscles relax. In the over-30 age group, the disorder is about 3 times more common in men than women. It’s estimated that about 5% of Australians have sleep apnoea, with around 1 in 4 men over the age of 30 affected. Who gets sleep apnoea?Īnyone can get sleep apnoea. This can leave you feeling unrefreshed in the morning with fatigue and sleepiness throughout the day and contributing to poor concentration and work performance. This pattern can repeat itself hundreds of times every night, causing you to have fragmented sleep. Most people are not aware of these arousals. When these things happen, the brain gets messages that something is wrong and will arouse itself from sleep for a few seconds. These are sometimes called episodes or interruptions. You may have partial or complete obstructions where your breathing may decline or stop for a short time (generally between 10 seconds and up to one minute). Sometimes the throat can collapse so much that not enough air can get into the lungs (hypopnea), or it blocks off completely and no air gets into the lungs (apnoea). Air tries to travel through the narrowed airway and causes vibrations in tissues in the back of the throat – these vibrations produce sounds known as snoring. If you have sleep apnoea, the walls of your throat will collapse and become narrow as you breath in while you sleep. It is caused by a disruption to the mechanisms that control the rate and depth of breathing. This is the common form of sleep apnoea.Ī rarer form is central sleep apnoea External Link – where breathing stops during sleep and there is a pause before breathing begins again. Sleep apnoea (also known as obstructive sleep apnoea or OSA) occurs when the throat muscles relax too much during sleep.
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