Which of the following is NOT an effect of alcohol consumption?

Alcohol consumption typically leads to a variety of effects on the body and mind, many of which can be detrimental. One notable aspect is that alcohol is a depressant, which means it slows down the central nervous system's functioning. This results in reduced reaction times, impaired motor skills, and diminished cognitive functions, making options like slowed down central nervous system function a clear effect of alcohol.

Additionally, alcohol can alter metabolic processes, often leading to increased fat storage and other impacts on metabolism, contradicting the notion of increased metabolic processes. When alcohol is combined with other drugs, it can indeed lead to unpredictable physical effects due to the compounded actions of both substances on the body.

In contrast, increased productivity is not a recognized effect of alcohol consumption. Rather, alcohol often hampers productivity by affecting concentration, efficiency, and overall performance in tasks. It tends to impair judgment and decision-making capabilities rather than enhance them. Therefore, stating increased productivity as an effect of alcohol consumption does not align with the general understanding of alcohol's impact on performance and functionality.