Rosemary aroma linked to improved cognitive performance in new study
Researchers report that exposure to rosemary essential oil may improve mental performance and support brain waste removal processes.
Study findings on cognitive tasks
A study published in Biomedicine & Pharmacotherapy found that people exposed to rosemary aroma had higher levels of cineole in their blood. Participants also showed improvements on certain cognitive tasks after this exposure. The compound 1,8-cineole may support acetylcholine, a neurotransmitter important for memory and attention.
Role in brain waste removal
The herb may help the glymphatic system remove metabolic waste from the central nervous system during sleep. Experts caution that current evidence does not prove eating rosemary clears brain waste overnight or prevents dementia. Using rosemary with healthy fats like extra-virgin olive oil might help extract beneficial compounds.
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