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Visual snow does not depend on the effect of psychotropic substances on the brain. [13] Hallucinogen persisting perception disorder (HPPD), a condition caused by hallucinogenic drug use, is sometimes linked to visual snow, [ 26 ] but both the connection of visual snow to HPPD [ 8 ] and the cause and prevalence of HPPD are disputed. [ 9 ]
A dried cannabis flower. The short-term effects of cannabis are caused by many chemical compounds in the cannabis plant, including 113 [clarification needed] different cannabinoids, such as tetrahydrocannabinol, and 120 terpenes, [1] which allow its drug to have various psychological and physiological effects on the human body.
Binge drinking regimes are associated with causing an imbalance between inhibitory and excitatory amino acids and changes in monoamine release in the central nervous system, which increases neurotoxicity; this may result in cognitive impairments, psychological problems, and may cause irreversible brain damage in both adolescent and adult long-term binge drinkers.
Many people try marijuana, and some develop an addiction leading to their lives — and the lives of others — being turned upside down, Dr. Mark Hurst writes. 'Marijuana is, in fact, a problem.'
Due to the way marijuana is smoked — unfiltered and breathed in deeply and held in the lungs and throat for a few seconds — the risk from cannabis smoke could be even greater, experts say.
Hearing loss may have many different causes, but among those with tinnitus, the major cause is cochlear injury. [36] In many cases no underlying cause is identified. [2] [38] Ototoxic drugs also may cause subjective tinnitus, as they may cause hearing loss, [15] or increase the damage done by exposure to loud noise. [39]
Hallucinogen persisting perception disorder (HPPD) is a non-psychotic disorder in which a person experiences apparent lasting or persistent visual hallucinations or perceptual distortions after using drugs, [1] including but not limited to psychedelics, dissociatives, entactogens, tetrahydrocannabinol (THC), and SSRIs.
Any continued use of drugs or alcohol may increase anxiety, psychosis, and depression levels in some individuals. In almost all cases drug-induced psychiatric disorders fade away with prolonged abstinence, although permanent damage to the brain and nervous system may be caused by continued substance use. [10]