Most long-term marijuana users who experience withdrawal from sudden cessation of use begin smoking the drug again again to reduce symptoms.
Studies indicate that inhaling nitrates depletes a large amount of cells in the immune system, making it difficult for the body to fight infectious diseases.
Short term use of amphetamines can easily start long term systematic abuse, with some speed addicts having habits lasting over twenty years.
Percocet addiction can develop without the individual even being aware that it is happening, until they come to realize that their dependence to the drug has begun to control their life.