People over 60 who inhale essential oils of eucalyptus, rosemary or lavender, for example, improve their memory at night. They can better remember what they just heard. For 6 months, neurologists at the University of California at Irvine had 20 people over 60 sleep while an aroma diffuser in their bedroom diffused essential oils for 2 hours. The researchers had the diffuser filled with a different aroma every day of the week. The researchers used essential oils from roses, oranges, eucalyptus, limes, peppermint, rosemary and lavender. During the same period, 23 over-60s in a control group fell asleep every night while a diffuser in their bedroom diffused no detectable essential oils. Before and after the 6-month experimental period, the researchers tested the mental abilities of the subjects with a battery of tests. Results Overall, the researchers found no statistically significant changes in the test results. [Table] However, there was one exception: on the Rey Auditory Verbal Le...
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