But this raises another question. How important is happiness anyway? People with chronic illnesses describe themselves as happy, but they would still pay large sums for better health. And although healthy individuals are not much happier than quadriplegics, they would pay large sums of money to keep the use of their limbs. Some of life's most satisfying experiences don't bring happiness. For instance, having children actually makes people less happy over the short term but that doesn't necessarily mean we should stop procreating.
"I think it's possible to way overestimate the importance of happiness," says Loewenstein. "Part of the meaning of life is to have highs and lows. A life that was constantly happy was not a good life."