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A member asked:
Why does my heartbeat speed up whenever i wake up from sleep?
A doctor has provided 1 answer
Sympathetic action: During sleep, our autonomic nervous system is functioning. When we wake, our conscious (i.e. Sympathetic) nervous system comes into action. This is usually accompanied by an output of Adrenalin from our body. This substance increases our heart rate and blood pressure. It gets us ready for a more active period...Arising.
Answered 4/19/2017
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