Trouble falling asleep may signal high blood pressure

By Kathryn Doyle (Reuters Health) – Trouble sleeping, especially trouble falling asleep, may be associated with high blood pressure, according to a new study from China. This is the first study to show that certain people with insomnia are at risk for high blood pressure, said coauthors Dr. Xiangdong Tang of Sichuan University in China and Dr. Alexandros N. Vgontzas of Penn State University College of Medicine, in a statement to Reuters Health. Insomnia with increased alertness during the day, or hyperarousal, is associated with increased chronic secretion of stress hormones like cortisol, which may lead to hypertension, they wrote. The authors studied about 300 adults, including more than 200 chronic insomniacs who’d had trouble sleeping for at least six months.



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