Insomnia Isn’t Just Exhausting — It May Raise Your Risk of Stroke, Dementia

The sympathetic nervous system is part ofTrusted Source the body’s involuntary nervous system that triggers your “fight or flight” response in stressful or dangerous situations. “Being too wired can impair sleep, and impaired sleep, in turn, can make us too wired. A state of higher adrenaline and cortisol raises blood pressure, blood sugar, and increases inflammation, all of which have serious health effects,” said Alex Dimitriu, MD, double board certified in Psychiatry and Sleep Medicine, and founder of Menlo Park Psychiatry & Sleep Medicine, who wasn’t involved in the study.

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