*[https://www.everydayhealth.com/emotional-health/optimism/guide/#:~:text=There%20are%20three%20main%20types,Trudel%2DFitzgerald. All About Optimism: Definition, Health Effects, and How to Boost Your Outlook] | *[https://www.everydayhealth.com/emotional-health/optimism/guide/#:~:text=There%20are%20three%20main%20types,Trudel%2DFitzgerald. All About Optimism: Definition, Health Effects, and How to Boost Your Outlook] |