Some people believe that alcohol loosen inhibitions and makes people more likely to say what they’re really thinking. Others argue that alcohol leads to clouded judgment and impulsive behavior, making it more likely that people will say things they later regret. There is some scientific evidence to support both points of view. Alcohol does affect the part of the brain that controls judgment and decision-making, which could lead to more impulsive statements. On the other hand, alcohol also lowers levels of serotonin, a chemical that helps to regulate mood. This may explain why some people feel more openness and honesty after drinking. Ultimately, whether or not alcohol leads to truth-telling depends on the individual. Some people may find that it helps them to speak their mind, while others may find that it leads to impulsiveness and poor decisions.