INFORMATIONAL ONLY DO NOT ATTEMPT
CAN BE HARMFUL OR FATAL
Okay so there is this thing where people hyperventilate and then strain. It causes them to pass out from lack of oxygen.
IT DOES NOT KILL BRAIN CELLS BECUSE YOU NEED TO BE WITHOUT OXYGEN FOR 3-5 MINUTES TO KILL BRAIN CELLS
however..it can be dangerous if you bang your head when you pass out or if you did something stupid like used a rope
Effects: It basically mimics a heroin rush with extreme euphoria when you wake up. VERY short lived