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Sleep Medicine

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In a recent US study results indicated that poor sleep may be an early warning sign for addictive and “regretful” behaviour; such as alcohol problems, illicit drug abuse and sexual behaviour. US researchers reviewed the sleep patterns of 6500 adolescents in combination with drug and alcohol habits, between 1994 and 2002.

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Scientists at the Medical College of Wisconsin (MCW) have discovered a link between sleep loss and cell injury. Results of a new study find sleep deprivation causes the damage to cells, especially in the liver, lung, and small intestine. Recovery sleep following deprivation heals the damage.

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New research confirms that sleep disturbances are linked to pain and depression, but not disability, among patients with osteoarthritis (OA).  Results from a new study found that poor sleep increases depression and disability, but does not worsen pain over time.

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Older women with disordered breathing during sleep were found to be at greater risk of decline in the ability to perform daily activities, such as grocery shopping and meal preparation, according to a new study led by researchers at the Johns Hopkins Bloomberg School of Public Health and the University of California, San Francisco.

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People with moderate to severe obstructive sleep apnoea may have an intrinsic inability to burn high amounts of oxygen during strenuous aerobic exercise, according to a new study led by researchers at University of California, San Diego School of Medicine.

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This webinar will be a clinical presentation in assessing a child who presents with snoring. Snoring is a very common presentation in childhood with some studies suggesting that up to 30% of children will snore at some point in their life. Within those that snore, there will be some who have obstructive sleep apnoea.

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A New Way of Looking at Sleep

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Australia’s free-to-air channel SBSOne recently aired an interesting documentary based on the premise that we only need a few hours of sleep a night  (if that), to function normally.

Michael Mosley, the presenter and guinea-pig of the show undertakes a mission to sustained wakefulness as long as he can. A former doctor himself, Mosley finds that after 48 hours of wakefulness, the agony is unbearable and proceeds to recover with a long night’s sleep. This was followed with a successful second attempt, only this time, assisted by the stimulant prescription medication Modafinil.

The notion of the documentary stems from claims made by Tony Wright and Graham Gynn, arguing that a diet of raw fruit changes the biochemistry in the brain, increasing human potential – including the amount of time needed for sleeping.  This interesting theory has gained popularity with a handful of neuroscientists and psychologists, however there no  published peer reviewed research supporting this hypothesis .

Indeed there is well documented research proving the value of power-naps, with much research showing dramatic hormonal, physiological and cerebrovascular changes in the brain during wake-sleep transitions, suggesting that short sleep periods can in fact have significant beneficial effects for a short period of time.

Other research has proven that there are specific times during which mammals are most likely to fall asleep (that is, sleepability increases). Providing a person can sustain wakefulness through these times (3-5pm and 2-4am), that correlate with core body temperature oscillations, the following period will prove easier to maintain wakefulness. Combining this research one could assume power-napping during these times of low core body temperature could potentially allow someone to sustain wakefulness for a rather long period of time.

Saying this however, there are multiple studies that repeatedly show the detrimental impacts on cognition, memory, mood, immune health, physical health and mental health following sleep deprivation. As of yet Wright’s theory is just that, a theory, with no apparent research to back it.

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