Michael Leon, a neurobiologist & professor emeritus at University of California, Irvine has conducted a promising research study that indicates smelling different essential oils routinely significantly improves memory and cognitive function. Leon conducted his experiment by providing just over 4 dozen healthy adult individuals average age 43, diffusers as well as a group of essential oils to go in them with instructions to diffuse a different one each night for 2 hours. Participants enjoyed a different scent nightly of rose, orange, eucalyptus, lemon, peppermint, rosemary.Over the course of six months, there was a 226% improvement in a learning ability and memory function test among those who slept diffusing the assigned essential oils compared with those participants that diffused distilled water every night as a control. Leon believes the oils stimulated the memory centers of people's brains as they slept. The results were published recently in the journal Frontiers in Neuroscience.
In a previous study, researchers in Korea found that twice-daily aromatherapy helps improve memory and attention in those with moderate dementia. Leon's study was testing more passive ways to stimulate the brain to allow ease of access and use for aging adults.
The idea is that it will keep the memory centers of your brain in good condition throughout life and perhaps prevent memory loss older in life.
Full Article to Cited Research here: https://www.frontiersin.org/articles/10.3389/fnins.2023.1200448/full