The relationship between BEC and the effects of alcohol is complex and varies between individuals and with patterns of drinking. Many of the effects correlate with the peak concentration of ethanol in the blood and organs during a drinking session. Other effects are due to products of metabolism and the total dose of ethanol ingested over a period of time. These two considerations are not entirely separable because the ethanol concentration during a session may determine which pathways of ethanol metabolism predominate.
It is of considerable clinical interest to understand what factors increase the probability of higher maximum ethanol concentrations for any given level of consumption.
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