A study by Lara Aknin and colleagues at the University of British Columbia shows that even in children as young as two, giving treats to others increases the givers’ happiness more than receiving treats themselves. Even more surprisingly, the fact that giving makes us happier than receiving is true across the world, regardless of whether countries are rich or poor.

Another study by Aknin, now at Simon Fraser University, shows that the amount of money spent on others (rather than for personal benefit) and personal well-being were highly correlated, regardless of income, social support, perceived freedom, and perceived national corruption.