Q:

Does locking your knees cause you to faint?

A:

Quick Answer

People who stand with their knees locked are susceptible to fainting. Because this activity hinders the flow of blood to the brain, the lack of circulation often leads to a light-headed feeling that sometimes ends in fainting, as stated by HealthDay.

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Full Answer

Choir members who stand during lengthy performances and soldiers who are required to stand at attention for extended periods of time are more likely to faint if they lock their knees. Warning signs that a person is about to faint include accelerated heartbeat, chest tightness, yawning more frequently than usual, a cool sweat and a sensation of dizziness, according to HealthDay.

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