Explain what the commonly held view of sickness and health is in this story?

The commonly held view at the time was that any sort of mental issues (depression, nervousness) were curable with rest. As a result, the narrator's husband, who is treating her illness, prescribes rest and treats her like a child.

If a physician of high standing, and one's own husband, assures friends and relatives that there is really nothing the matter with one but temporary nervous depression - a slight hysterical tendency - what is one to do?

My brother is also a physician, and also of high standing, and he says the same thing.

I sometimes fancy that in my condition if I had less opposition and more society and stimulus—but John says the very worst thing I can do is think about my condition, and I confess it always makes me feel bad. So I will let it alone and talk about the house.