In Google News today, there was a blurb about this article. Researchers found a 226% improvement in cognitive power after subjects had smelled essential oils while they slept. Seven different oils were used, one a night.
The version of the article that I saw did not itself list the oils but I found this in the comments:
Wes Sawkins | September 3, 2023 at 6:10 am | Reply
Individuals assigned to the olfactory enrichment group were provided with an odorant diffuser (Diffuser World) and 7 essential oil odorants (rose, orange, eucalyptus, lemon, peppermint, rosemary, and lavender; from The Essential Oil Company, Portland, OR) in identical glass vials that each fit into the diffuser.
https://www.frontiersin.org/articles/10.3389/fnins.2023.1200448
I looked at Amazon.com and they sell many sets of essential oils but I didn't find one that completely matches the types listed.
