Brain fitness refers to activities and exercises designed to improve cognitive functions such as memory, attention, and problem-solving skills. Just like physical fitness, brain fitness involves regular practice and engagement in tasks that challenge the mind. This can include puzzles, reading, learning new skills, or playing memory games. Maintaining brain fitness is important for overall mental health and can help reduce the risk of cognitive decline as we age. Engaging in social activities and physical exercise also contributes to brain health, as they promote better blood flow and stimulate the growth of new brain cells.