Magnificent of emotions, poor decisions, and trouble making are effects of alcohol on which body system?

Alchohol and drugs influence the chemicals flowing through your synapses, which is why you feel 'high' after smoking cocaine or heroin. Alchohol is a depressant, affecting your nervous system, digestive system, and brain. 

I believe the answer is either nervous system or digestive system.

I think the answer youre looking for is the nervous system

Answerspermicides;