Mental functions refer to the cognitive processes that allow individuals to think, learn, remember, and solve problems. These functions include perception, attention, memory, reasoning, and decision-making. They are essential for everyday activities, enabling people to understand their environment and interact with others effectively. These functions are influenced by various factors, including age, education, and overall health. Conditions such as dementia or depression can impair mental functions, affecting a person's ability to perform tasks and maintain relationships. Understanding these functions is crucial for promoting mental well-being and addressing cognitive challenges.