Effect of blood pressure on hanging

[Oneiron]

I found out that i pass out more rapidly when my blood pressure is high during carotid compression. Is there any connection between the ability to obstruct an artery and its pressure?

 

[Chemi]

Not really. High blood pressure does not make someone lose consciousness faster if their airway becomes blocked. High blood pressure doesn't meaningfully change how fast oxygen is used up by your body. I am just reading a paper on that topic, and it says: Slightly higher blood pressure can sometimes help maintain cerebral perfusion for a short moment. Cerebral perfusion is the blood flow through the brain tissue btw. So high blood pressure will actually push more oxygen through the blockade to your brain, meaning you will be conscious for longer

Causes for going unconscious quicker during hanging are:

• How completely the airway is blocked
• How long you can hold your breath
• How much oxygen was in your blood at the moment of you hanging

If you obstruct an artery, your body will automatically raise blood pressure to break through the blockage.
So I guess somebody who wants to hang themselves should do the exact opposite and lower their blood pressure.

 

[gunmetalblue]

It makes sense with a higher blood pressure the artery would require less compression to hit the needed range to black out. So faster.

 

[SweetPotatoe]

It's probably just because when you compress an artery, it limits the flowing blood, causing chemicals to stimulate heart's activity -> increase pressure. Also when an artery is obstructed, the arterial lumen diameter decrease, which increase blood pressure according to Laplace's equation?
=> The compression leads to increase in pressure.
(I'd love to know if there's anything wrong)