Since I learned what hormesis was, I’ve been fascinated with the idea. Hormesis is a beneficial biological effect comes from exposure to low doses of an agent that is toxic at higher doses. A basic example is sunlight. In very large doses, sunlight can be very harmful, however in smaller doses sunlight is very beneficial.
I think this idea applies to the stock market psychology as well. Some people view the market being down as a negative thing. I choose to view it in a hormesis sense instead. The market going down is healthy for the market! Small doses of bad things are good for you.
Instead of fretting over the market being down, instead view it as a healthy reset. The market goes up more than it goes down, so just remember that! Stay chill and just buy good companies. Everything will work out in the end.