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A member asked:
What causes you to faint or almost fainting?
A doctor has provided 1 answer
Faintness: Syncope or presyncope has various causes including low blood pressure, abnormalities of heart rhythm, anemia, anxiety,excessive fatigue,sudden emotional stress,certain cerebral abnormalities,dehydration,sleep deprivation for example. One isolated episode of fainting may have no obvious serious cause but recurrent symptoms must be thoroughly investigated.
Answered 4/10/2018
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