Simply take 5-10 minutes every day to clear your mind and be one with yourself. Meditation can decrease anxiety, increase creativity, improve immune system, lower blood pressure, decrease muscle tension, improve headaches, aid in problem solving, provide self-discovery, and increase serotonin which improves overall mood and behavior. 7. Cook Meals. 7. Eat More Fish. Living a busy lifestyle means your brain is constantly working, which is why you should try and eat foods that benefit the brain and boost brain function. Fish is a great source of omega-3 fatty acids which help build membranes around each cell in the body, including the brain cells.