Better life means, first of, all happier life, therefore happiness is the most important topic of this blog. Not going into great detail of what happiness is, let us start with the most important prerequisite of happiness: social relationships. All researchers looking into the topics, like this one, for example, found that successful social relationships are one of the strongest predictors of happiness. Ditch the myth that happy people are self-reliant. Some of them may well be, but self-reliance has nothing common with happiness.
One can speculate that statistic is merely showing relation between two factors. What if the happy just communicate better? We will never know this, except for the cases of people who tried to communicate more (deeper, sincerer, etc.) and became happier.
But think about this from the evolutionary standpoint. Assume, among our ancestors there were social and antisocial types. How do you think had better chance to survive in the hostile environment? How do you think had better chance to produce more descendants? Since answers are obvious, how do you think are our most likely forefathers – people primed to connect to others or self-reliant macho?