Fainting, also called passing out, can be frightening. But it’s actually a common occurrence. An estimated one in three people will faint at some point in their lives. The person usually regains consciousness within a few minutes, recovers quickly, and returns to normal. However, if it occurs frequently, then you should be concerned.
Here are three causes of sudden fainting:
* Environmental factors: Most commonly in a hot, crowded setting.
* Emotional Factors: Stress or injury
* Illness: Fatigue, Dehydration or other illnesses