A new study in Japan of 65 men with moderate to severe Obstructive Sleep Apnea (OSA) found that these subjects had more lesions (scars) on brain scans compared with those who had mild OSA or no-sleep disorders. Additionally people with severe OSA had elevated levels of inflammation and blood clotting, which increased their risk of Heart attack or strokes. A second study of 24 patients with moderate to severe OSA, who were treated with Continuous Positive Airway Pressure (CPAP) for 3 months, revealed that the use of CPAP was associated with reduced levels of both inflammation and blood clotting and CPAP helps reduce the risk of heart attacks and strokes.

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