When blood alcohol levels rise over an extended period of time, individuals are less likely to experience blackouts, even if they eventually become drunk.
PCP use may alter mood states in an unpredictable fashion, causing some individuals to become detached, and others to become animated.
Opiate addicted individuals who do not receive regular doses of opiates begin going through withdrawal, which is a very painful process.
Premenstrual hormonal changes create a faster increase in Blood Alcohol Concentration right before menstruation.