The bottom line is this: The âhempâ proposed as an alternate farm crop is marijuana, the same stuff that is illegal and psychoactive. From a forensic perspective, the problems of legalizing âhempâ while continuing to outlaw âmarijuanaâ would be significant. You would in essence be legalizing marijuana.
Inhaling any kind of smoke or imbibing toxic chemicals begins to kill brain cells. But at the same time, the brain can rewire itself to use up some of the 90% humans don't use.
1 A very severe stroke can cause brain death.  Heart attack or cardiac arrest: when blood supply to the heart is blocked (heart attack), or when the heart stops beating altogether (cardiac arrest), there is no longer adequate blood and oxygen supply to the brain, causing damage to the tissues of the brain.