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Syncope is the brief loss of consciousness caused by a temporary decrease in blood flow to the brain. The person usually regains consciousness right away, but may experience momentary confusion.

The most common causes of syncope are:

  • Blacking out
  • Fainting
  • Light-headedness
  • Dizziness
  • Drowsiness
  • Grogginess
  • Feeling of unsteadiness while standing

Syncope could be the sign of a more serious condition, so it’s important to seek treatment as soon as possible after an episode occurs.