Listening to music can have various effects on the brain and cognitive functions. Some studies suggest that listening to music can improve certain cognitive skills such as memory, attention, and even problem-solving abilities. However, it's important to note that the impact of music on intelligence is still a topic of debate among researchers. While music may not directly make people "smarter" in a traditional sense, it can certainly have positive effects on mood, focus, and overall well-being, which may indirectly contribute to cognitive performance.