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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.
Methylmercury, a worldwide contaminant of seafood and freshwater fish, is known to produce adverse nervous system effects, especially during brain development. Eating fish is the main source of mercury exposure in humans and some fish may contain enough mercury to harm the developing nervous system of an embryo or fetus, sometimes leading to ...
Psychoactive drugs operate by temporarily affecting a person's neurochemistry, which in turn causes changes in a person's mood, cognition, perception and behavior. There are many ways in which psychoactive drugs can affect the brain. Each drug has a specific action on one or more neurotransmitter or neuroreceptor in the brain.
[1] [4] PCP may cause hallucinations, distorted perceptions of sounds, and violent behavior. [4] [7] [8] As a recreational drug, it is typically smoked, but may be taken by mouth, snorted, or injected. [4] [5] [7] It may also be mixed with cannabis or tobacco. [1] [4] Adverse effects may include seizures, coma, addiction, and an increased risk ...
Psychedelic therapy (or psychedelic-assisted therapy) is the proposed use of psychedelic drugs to treat mental disorders. [60] As of 2021, psychedelic drugs are controlled substances in most countries and psychedelic therapy is not legally available outside clinical trials, with some exceptions.
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Psychedelics, including psilocybin, have been shown to affect different clusters of brain regions known as the "theory of mind network" (ToMN) and the default mode network (DMN). [60] The ToMN involves making inferences and understanding social situations based on patterns [ 61 ] whereas, the DMN relates more to introspection and one's sense of ...
A link between these types of drugs and cognitive impairment isn't a totally new discovery, but for the first time, researchers used brain imaging techniques to determine the physical changes ...