[close04]

And then there’s the fact than any feeling that persists for longer than a certain period becomes normality. So you are no longer happy because you become desensitized to the endorphins in your brain (or produce less) and go back to neutral. That’s when you need more.

Since happiness can be traced back to chemicals in your brain you can see it just like any drug. You build up resistance and even if from the outside it looks like you have everything you might still be not happy.

I remember asking myself these questions years ago when I read an article about some physically impaired people being just as happy as able bodied ones, and one guy who left the Beatles before they became huge also being perfectly happy and content. Probably more so than the rest of the Beatles :).

[Bakary]

I only have my anecdotal experience to draw from, but I've noticed that having a network of strong relationships is the one factor whose impact on my happiness hasn't seemed to dull over the years.

[close04]

I think you are right. Might be because such a network is flexible, provides what you need, when you need it, and it only appreciates with time. Unlike say a car or a new phone which quickly depreciate and rarely adapt (can be adapted) to your future needs.