Alcohol combined with which substance affects short-term memory and tracking ability?

When alcohol is combined with marijuana, the effects on short-term memory and tracking ability are significantly amplified. Both substances impair cognitive functions, but together, they can exacerbate these impairments, making it markedly more difficult to focus, process information, and react quickly in various situations. This hazardous interaction is particularly concerning in the context of driving, as it can lead to a higher likelihood of accidents due to impaired judgment and slower reaction times.

In comparison, antihistamines and tranquilizers can also impair cognitive function, but they work differently and are generally not considered to have as strong of a combined effect with alcohol on short-term memory specifically. Caffeine, on the other hand, is a stimulant that can counteract some sedative effects of alcohol, potentially making one feel more alert despite the alcohol's depressant effects. However, caffeine does not directly affect memory the way marijuana does when paired with alcohol.