What’s people’s opinion on “aromatherapy”? Are certain scents supposed to be good for disease or to promote health?

I guess my view is in favor of a mild support of the theory that certain scents may create health, but perhaps more than this that I think smells may be good for an aethetic value and promote a “quality of life”.

I have noticed a few times for example, while I might have audio-visual stimulation on a computer inside, that when I go outside I might additionally encounter such fresh air “smells” that seem to yield feelings of health, well-being, and which also stimulate the recall of certain memories associated with the smells.

I think I remember expecting that “smell-o-vision” would become a part of computers at some point, or of some automated way for computers to let off certain smells. I thought movie theaters might incorporate the sense of smell more at some point. I’m sure some obscure gadgets like this exist or could be a DIY project, and some places exist that do this in a theater, but it doesn’t seem to have had the widespread adoption that I might have thought would have happened.

But anyway, any opinions on utilizing the sense of smell for health and wellness?