I am a big fan. So many reasons.
My personal opinion
is that pleasant smells really enhance one's quality of life. VS can tell you that one of the most important aspects of enjoying a great wine is the aroma. Just last night I had a great Bordeax (Chateau Beycheville) and spent the evening with my nose in the glass. Indeed the nose is the reason for the shape of a wine glass.
My wife occasionally "smudges" our house using white sage. Native Americans in this area (I live a mile from a reservation) swear by it. When she does the house seems much 'cleaner'.
Frequently, when I go into the homes of my fellow geezers I smell what I can only describe as 'old people smell'. We fight that with essential oil diffusers and opening the windows and doors to air out the house at least every other day.
When I am cooking I use the old Italian trick of keeping olive oil out and using a few drops after I wash my hands.
Peppermint runs off packrats on my property without killing them.
We use (real) lemon oil polish on our furniture. It works great and there are some studies that show the smell of lemon oil makes you happier. Seems to work for me.
After a party we put out Eucalyptus oil to 'clear out the room'.
We have lemon grass in our container garden.
Watch out for Tea Tree Oil however. There are some sketchy studies that it might not be good for you.
Anyway. Big fan.
Here is what the Mayo Clinic says:
Research on the effectiveness of aromatherapy — the therapeutic use of essential oils extracted from plants — is limited.However, some studies have shown that aromatherapy might have health benefits, including:
Relief from anxiety and depression
Improved quality of life, particularly for people with chronic health conditions
Smaller studies suggest that aromatherapy with lavender oil may help:
Reduce pain for people with osteoarthritis of the knee
Improve quality of life for people with dementia
Reduce pain for people with kidney stones
My doctor and many of those with whom I work are less and less inclined to dismiss alternative therapies. Though they are Allopathic to the core they recognize it when their patients express to them wellness and even cure through alternative therapies.