All the recreational drugs that are taken out of their natural state are very dangerous and damaging, especially the pharmaceutical kind. Everything gets processed through the liver, so these recreational drugs leave horrible toxins behind in the body's organs, destroying the liver over long term use. Immediate damange can happen quickly to the heart, brain and nervous system, depending on the individual's health condition. My husband and I work with helping others recover from drug abuse. In or experience, Meth as been the worst in leaving its distructive imprint on the body.