It's sad how western civilization puts such an emphasis on money/net worth. I think your own health (your body is your temple) correlates with happiness. I've seen some rich people with health issues miserable, and some humble people content with little (but are healthy) by western standards.
yes, in some ways I just take my health for granted.
I've been working on my diet and fitness for so many years.. it's become second nature too, even if I'm not always successful, I think about it every day.
My experience: happy people are most likely to live in a clean home, exercise daily, eat healthy food and don't smoke.
Money may not buy happiness, but it can sure make you unhappy to be without.