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Intoxication does have real physiological effects, such as altering a drinker's perception of space and time, reducing psychomotor skills, and disrupting equilibrium. [74] But some effects and the degree of the effects that are attributed to alcohol can be due to the expectations rather than the substance itself, [75] similar to the placebo ...
The level of ethanol consumption that minimizes the risk of disease, injury, and death is subject to some controversy. [16] Several studies have found a J-shaped relationship between alcohol consumption and health, [17] [18] [2] [19] meaning that risk is minimized at a certain (non-zero) consumption level, and drinking below or above this level increases risk, with the risk level of drinking a ...
Another one of alcohol's agreeable effects is body relaxation, which is possibly caused by neurons transmitting electrical signals in an alpha waves-pattern; such waves are actually observed (with the aid of EEGs) whenever the body is relaxed. [citation needed] Short-term effects of alcohol include the risk of injuries, violence, and fetal ...
Alcohol intoxication, commonly described in higher doses as drunkenness or inebriation, [9] and known in overdose as alcohol poisoning, [1] is the behavior and physical effects caused by recent consumption of alcohol.
Alcohol abuse affects neurons in the frontal cortex that typically have a large soma, or cell body. This type of neuron is more susceptible to Alzheimer's disease and normal aging. Research is still being conducted to determine whether there is a direct link between excessive alcohol consumption and Alzheimer's disease.
Alcohol is also converted into phosphatidylethanol (PEth, an unnatural lipid metabolite) by phospholipase D2. This metabolite competes with PIP 2 agonist sites on lipid-gated ion channels. [28] [29] The result of these direct effects is a wave of further indirect effects involving a variety of other neurotransmitter and neuropeptide systems. [25]
Signs of alcohol abuse are related to alcohol's effects on organ systems. However, while these findings are often present, they are not necessary to make a diagnosis of alcohol abuse. Alcohol use disorder causes acute central nervous system depression which leads to inebriation, euphoria, impulsivity, sedation and poor judgment. Chronic alcohol ...
The term "alcoholism" was split into "alcohol abuse" and "alcohol dependence" in 1980's DSM-III, and in 1987's DSM-III-R behavioral symptoms were moved from "abuse" to "dependence". [116] Some scholars suggested that DSM-5 merges alcohol abuse and alcohol dependence into a single new entry, [117] named "alcohol-use disorder". [118] DSM-5