Scientists have found a new way to improve memory in older adults: inhaling the scent of rosemary essential oil. The results of those participating in the experiment showed a 15% improvement.
If you've recently noticed something troubling your memory, it might be time to consider growing
rosemary . Or at least purchasing rosemary essential oil. Scientists at Northumbria University have proven that rosemary is indeed linked to improved memory. When you inhale rosemary, its compounds, absorbed through the lungs, are carried to the brain, where they can affect brain chemistry.
Prospective memory
Researchers focused on prospective memory. This is responsible for remembering to complete tasks that must be completed by a deadline and for remembering events that will occur in the future.
Rosemary and lavender
The test involved 150 people over the age of 65. Volunteers were randomly placed in three rooms. One room was scented with rosemary, another with lavender, and the third was unscented. The rooms
were scented with four drops of essential oils using a diffuser five minutes before the participants arrived.
Solving tasks
While the seniors were in their rooms, they were asked to complete several tasks that assessed their prospective memory abilities—time- and event-based. They were asked to remember to deliver a message at a specific time and to switch tasks when a specific event occurred. Furthermore, they assessed their mood before and after the tests in scented or unscented rooms in a special survey.
Fragranced vs. Unfragranced Room
Analysis of the results showed that rosemary scent significantly enhanced prospective memory compared to a room without the scent. Considering mood and compared to a control condition, rosemary increased alertness, while lavender increased levels of calmness and happiness.
The scent potential of plants
Once upon a time, every village had its own herbalist, who recommended lavender for good sleep and chamomile for calming the nerves. Most of these health benefits have been documented for centuries. A British study confirms rosemary's beneficial effects on human memory. Previous studies have shown that rosemary improves brain function and blood circulation, and also reduces the risk of cancer.
Herbal teas
The same group of scientists analyzed the effects of drinking peppermint tea. They found that the mint beverage can improve long-term memory, working memory, and alertness. Chamomile, on the other hand, has the opposite effect—it slows down memory and concentration, making it an ideal way to relax.
