Sleep Disorder: Narcolepsy

Narcolepsy is a chronic sleep disorder in which a person feels excessively sleepy during the day, and has disturbed night sleep. Narcolepsy is often associated with sudden loss of muscle tone, and bri...

Sleep Disorder: Obstructive Sleep Apnea (OSA)

Obstructive sleep apnea is sleep apnea (or pauses in breathing during sleep) caused by an obstruction in the airway. Symptoms of obstructive sleep apnea include snoring, daytime sleepiness, and waking...

Smoking And Tobacco

Smoking is a form of recreational drug use in which a substance, usually tobacco, is burned and the smoke inhaled. Smokers are at risk for a number of heart and lung diseases.

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Spondylolisthesis

Spondydolisthesis is the slipping of part of the vertebrae of the spinal column so that they are out of place in relation to the vertebrae beneath. This can happen due to degeneration of the tissue or...

Spondylosis

Spondylosis is degenerative arthritis or osteoarthritis that affects the spine. It causes the spine is loose its structure and can affect the neck, mid-back, or low-back regions of the spine. Usually,...