I’ve heard about a pressure point on the body that when pressure is applied you can substantially lower your blood pressure immediately.  Can you please comment on this?

Applying pressure to the area of the carotid artery in the neck will slow the heart and lower blood pressure. If too much pressure is applied, fainting will occur. Sometimes doctors use a gentle carotid massage to slow down a fast heart rate.  Martial arts experts use this knowledge to disable opponents with a neck strike.

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