He wrote a book called "The Psychology of Money," and among other topics, it talks about money being as much dopamine, cortisol, and serotonin as it is ROI and calculation.

Money is more than just math and spreadsheets - it's dopamine, serotonin, and cortisol as well.

The hormones released when you feel stressed, such as cortisol and adrenaline, put your body into fight or flight mode.

While working at a desk for 8 to 10 hours a day stressing out and raising cortisol levels  then going into hospital for pneumonia was laid off. thx investor driven America I  gained all that weight then was thrown under bus doiing loss mit defaulted  Mortgage paper.I took it upon myself to lose the weight still have an additional 30 to 40 to go, but in a much healthier place in my life.