Inhalants are substances that affect the normal functioning of the brain, consumed by inhaling vapors through the nose and mouth. The effect most resembles the characteristic of being drunk (slurred speech, slurred speech, blurred vision and diplopia, disorientation) with a sense of "buoyancy". Effects include reduced sensation of hunger and cold, creating a state of indifference to both.
Intoxication is often accompanied by hallucinations. Chronic inhalant use causes optic nerve damage, and injuries in the body balance system, making it impossible to walk stably. Inhalants cause progressive loss of the major intellectual functions (thinking, memory, and learning) as well as hearing loss.