A 44-year-old member asked:
why do i get headaches when i get woken up?
1 doctor answer • 1 doctor weighed in
Internal Medicine 35 years experience
PNS problem?: Sleep increases parasympathetic nervous system (pns) activity. Pns also can relax blood vessels and hence increase blood flow to your brain. When you are awakened this could manifest as a headache.
5302 viewsAnswered >2 years ago
Last updated Feb 11, 2013
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