Puzzling is a mental workout that stimulates both sides of the brain. Studies have shown that jigsaw puzzles can help improve visual-spatial reasoning, short-term memory and problem-solving skills, as well as reduce the rate of cognitive decline and dementia. It can help improve your mood by boosting dopamine production. Puzzling helps reinforce connections between brain cells, improving mental speed and thought processes. Engaging yourself in puzzle-making can serve as an exercise in mindfulness and help relieve stress. Puzzles are a great way to exercise the small muscles in fingers and eyes especially for those with arthritis or who have experienced a stroke.