Aging well and living longer requires a positive attitude according to study
I swear that I've read just the opposite just a few months ago. People who are the most irritable seem to hang around a long time so I question these surveys.
Aside from that there is a question of quality life and having meaning in your life. to make living longer worthwhile. This is where I can agree with this study.
Find a purpose. If that purpose is to have fun with friends on a doubles court or to teach kids the game you will accomplish a lot for the future as well.
