Things that damage the economy indirectly.
For example I feel that fast food and an unhealthy lifestyle leads chronic health problems that probably affects the economy not just monetarily.
Of course we can't just deny these people care, just promote a healthier lifestyle.
What are other things that we can change that will affect the economy in a positive way?
What we can change? As you stated, one reason is fast food, can you ban it? I doubt anyone is willing to do that. We are full of bad habits they may affect our life. Our country's economy is damaged when country don't have good doctors and you have to go in different country to cure disease, that's a huge cost and imagine on a lot of people, that affects economy seriously. Also the fact that we humans can't stand without war, damages economy too and in this proposal I mean that every country spends huge amount of money on military services. Why is that money spent? For what? We can live in piece and never own military which would save a lot of money but no, we can't.
I don't believe in banning, but rather education. Education about the branch of consequences. From health problems that affect the quality of life of someone, and how the lost productivity, the care cost, how all that will affect the economy.