If you want a laugh, walk into a chiropractor's office, and learn about the many issues your spine has. People tend to be unfortunately incentivized to find so

If you want a laugh, walk into a chiropractor's office, and learn about the many issues your spine has. People tend to be unfortunately incentivized to find something wrong with you, as they get paid based on treatments performed. In the US, this produced the idea of Health maintenance organizations (HMOs), where there is a large member count paying a fixed fee. The hope was they'd want to spend on preventative care, and minimize other costs.