I think that the most important factor in how happy you are is... how happy you decide you are. Most of the things we identify with happiness or unhappiness generally contribute based on how we believe they should. If you believe that wealth makes you happy or unhappy, you'll find reasons why it does, and the same with whatever other situation you can think of. It's the whole basis of the glass half full/empty idea.
"Well, evolution is a theory. It is also a fact. And facts and theories are different things, not rungs in a hierarchy of increasing certainty. Facts are the world's data. Theories are structures of ideas that explain and interpret facts. Facts don't go away when scientists debate rival theories to explain them. Einstein's theory of gravitation replaced Newton's in this century, but apples didn't suspend themselves in midair, pending the outcome. And humans evolved from ape- like ancestors whether they did so by Darwin's proposed mechanism or by some other yet to be discovered."
-Stephen Jay Gould
-Stephen Jay Gould
