Monthly Archives: August 2015

Obstructive Sleep Apnoea: Its Impact on Diabetes and Cardiovascular Disease

Studies done by independent groups in Australia indicated that obstructive sleep apnoea is a probable cause of systemic hypertension in middle-aged and young people and that treatment definitely aids to reduce high blood pressure in some patients. The same studies concluded that severe OSA is strongly linked with increased mortality, cardiovascular disease and stroke in middle-aged people.

It is a fact that there is a prevalence of type 2 diabetes mellitus and cardiovascular disease in patients with OSA. Irregular hypoxia with irregular sleep significantly leads to procoagulopathy and proinflammatory states which then lead to insulin resistance (IR) and cardiovascular disease (CVD).… Read More...

Circadian Rhythm Disorders

Circadian rhythms are changes in one’s physical, mental and behavioral changes that follow a 24-hour cycle. They are important in the determination of a person’s sleeping pattern such as when he sleeps and when he wakes up on a 24-hour cycle. The suprachiasmatic nucleus (SCN) is the body’s master clock that controls melatonin production, which is the “sleep” hormone. The SCN is located near the optic nerve thereby relaying information from the eyes to the brain. When there is less light, the SCN commands the brain to produce more melatonin to make a person sleepy.

biological_clock                                         Circadian Rhythm Clock

Circadian rhythms regulate the 24-hour phasing of a person’s processes where pattern of brain waves, cell generation, hormone production and other biological activities.… Read More...

Obstructive Sleep Apnoea

Obstructive sleep apnoea or OSA is a sleep disorder involving either cessation of breath or a marked decreased in airflow when one is breathing. OSA is the most common type of sleep disorder relating to breathing, and is highly characterized by episodes of upper airway collapse while one is sleeping. Each episode is associated with repeated arousals from sleep and oxyhemoglobin desaturations. OSA that is linked to excessive daytime sleepiness is referred to as obstructive sleep apnoea syndrome or obstructive sleep apnoea-hypopnoea syndrome.

Signs and Symptoms of OSA

Symptoms of OSA are subtle. The condition could be present for years before a person realizes he needs to seek medical help.… Read More...

Public Health Implications of Sleep Loss

Sleep is a biological process that is as basic and necessary as food and drink in order to function and thrive. One may lack sleep either because of insufficient time allotted for sleeping or due to the presence of a sleep disorder such as obstructive sleep apnoea. After decades of research, it is safe to conclude that chronic sleep loss may lead to a host of health and social consequences.
Prevalence of Sleep Loss

sleep disorder

A study and survey conducted by Australia’s Sleep Health Foundation indicated that 20% to 35% of Australians suffer from sleep difficulties such as insufficient sleep, initiating and maintaining sleep; sleepiness, daytime fatigue and irritability.… Read More...