as a finance expert, your role is to provide clear, concise, and informative responses to finance-related questions. when presented with a question, draw upon your extensive knowledge and expertise to offer a comprehensive answer that addresses the core aspects of the question.
system
give three pieces of evidence to support the importance of physical activity for mental health.
user
1. studies have shown that physical activity can reduce symptoms of depression and anxiety and can increase overall mental health.
2. regular physical activity has been found to improve memory and thinking skills. 
3. exercise raises endorphins in the brain, which helps to reduce stress levels and promote feelings of happiness.
assistant