• Is hanging a lot painful?
If you do it correctly, in less than 15 seconds you'll stop feeling the pressure and compression of the ligature on your neck. Read this thread about
pain, unconsciousness, involuntary body movements.
• Can hanging break the neck as it says?
No, that's not the goal in partial or full suspension. In drop hanging (executions), it is the goal, and there's a specific procedure to achieve it (calculations of height, weight, and fall will depend on each person's body structure).
• Does hanging works by blocking the airway and blood flow to the brain?
The goal is to block the flow of oxygenated blood to the brain. Airway obstruction is a consequence of this process. The ligature, positioned under the jaw and tightened to its maximum around the neck due to the weight of your suspended body, will cause the base of the tongue to slide upwards, blocking the passage of air.
Swallowing will also be impossible; all the structures inside your neck will be compressed. Even the diameter of your neck will decrease as the ligature penetrates deeply and the knot tightens itself (Arbor Knot) under the weight of your suspended (hanging) body.
Photo:
postmortem CT scan of the neck (hanging suicide) with the ligature still on his neck
• What could be the physical damage if I survived?
The longer your brain is without oxygen, the greater the damage. Remember that it is considered a medical emergency and we are causing it intentionally.
Brain oxygen deprivation and death
You can prevent this by testing your rope and anchor point; they should not break and must be strong. You must ensure that you are completely alone, and that no one interrupts, saves, or finds you ahead of time.
• What kind of rope would be the perfect option?
Choose a synthetic material like polyester or polypropylene; they are strong.
It should be a static rope (without elasticity), and braided (not twisted) so that it slides easily since its surface is smooth.
It should not have an internal core so you can tie and tighten the knots more easily (for example, not Kernmantle ropes which tend to be stiff and less flexible)