There are many ways one can Join the M.A.D. Movement and make a difference, not only for others, but even themselves, and volunteering is one of the most beneficial and rewarding M.A.D. Move almost anyone can do. A study in Social Science and Medicine examining the relationship between volunteering and measures of happiness at the London School of Economics discovered that the more people volunteered, the happier they were. Volunteering not only is good for your mind and body bringing fulfillment and fun to your life but also allows one to connect with others and can help career advancement and networking.