3. Lethal injection
Introduced in 1970’s in Oklahoma, the method is approved by the Government of United States for being painless. The process is divided into three stages. A person is supposed to get injected with anesthesia to eliminate any sort of pain. Then the person is injected with pancuronium, which is also known as a paralytic agent. Injecting the paralytic agent stops a person breathing and he finally gets a shot of potassium chloride, which stops the heartbeat right away and causes instant death. This is undoubtedly one of the painless and quickest ways of killing oneself.
