longer life

A new book from a renowned Harvard University doctor reveals why being happy is an even better predictor of a long life than your cholesterol levels are. Plus, his most shocking scientific discovery about how to become happy—all based on 100 years of Harvard health data. Building and...

The linked video has IMO a lot of great points that everyone who follows the developments in this area should be aware of. It's very relevant for the IMO over-rated concept of calorie restriction and the anti-Growth Hormone arguments, and lots of other topics as well:

The healthy lifestyle factors associated with longer life expectancy in this study were A healthy diet Maintaining a body mass index of 18.5 to 24.9 kg/m2 30 minutes or more a day of moderate/vigorous physical activity Light alcohol intake Never smoking...