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Wednesday, August 31, 2011

HEALTH & BP: Lack of deep sleep increases high BP risk!


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ANI / WASHINGTON, August 30, 2011 /DC. 

Farmers sleep on their paddy stocks at an agricultural market yard in Nalgonda District. Researchers found that people with the lowest level of Slow wave sleep (SWS) (one of the deeper stages of sleep), had an 80 per cent increased risk of developing high blood pressure. File Photo: Singam Venkata Ramana
Farmers sleep on their paddy stocks at an agricultural market yard in Nalgonda District. Researchers found that people with the lowest level of Slow wave sleep (SWS) (one of the deeper stages of sleep), had an 80 per cent increased risk of developing high blood pressure. File Photo: Singam Venkata Ramana - The Hindu.


Not getting a proper night’s sleep increases the risk of high blood pressure in older men by 80 per cent compared to those who got longer, less interrupted sleep, according to a new research.
Slow wave sleep (SWS), one of the deeper stages of sleep, is characterized by non-rapid eye movement (non-REM) from which it’s difficult to awaken. It’s represented by relatively slow, synchronized brain waves called delta activity on an electroencephalogram. Researchers from the Outcomes of Sleep Disorders in Older Men Study (MrOs Sleep Study) found that people with the lowest level of SWS had an 80 per cent increased risk of developing high blood pressure.
"Our study shows for the first time that poor quality sleep, reflected by reduced slow wave sleep, puts individuals at significantly increased risk of developing high blood pressure, and that this effect appears to be independent of the influence of breathing pauses during sleep,” said Susan Redline, M.D., the study’s co-author and Peter C. Farrell Professor of Sleep Medicine in the Department of Medicine at Brigham and Women’s Hospital and Beth Israel Deaconess Medical Centre, Harvard Medical School in Boston, Mass.


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