Is this enough to start regaining your lost 5 cognitive years from the stroke
or does your doctor have something better? 9 years to get that accomplished.
Short-term Study on the Effects of Rosemary on Cognitive Function in an Elderly Population
Affiliations
- PMID: 21877951
- DOI: 10.1089/jmf.2011.0005
Abstract
Rosemary (Rosmarinus officinalis L.) has traditional reputations
that justify investigation for a potential role in reducing widespread
cognitive decline in the elderly. A randomized, placebo-controlled,
double-blinded, repeated-measures crossover study was conducted to
investigate possible acute effects of dried rosemary leaf powder on
cognitive performance. Twenty-eight older adults (mean age, 75 years)
were tested using the Cognitive Drug Research computerized assessment
system 1, 2.5, 4, and 6 hours following a placebo and four different
doses of rosemary. Doses were counterbalanced, and there was a 7-day
washout between visits. There was a biphasic dose-dependent effect in
measures of speed of memory: the lowest dose (750 mg) of rosemary had a
statistically significant beneficial effect compared with placebo
(P=.01), whereas the highest dose (6,000 mg) had a significant impairing
effect (P<.01). There were significant deleterious effects on other
measures of cognitive performance, although these were less consistent.
Speed of memory is a potentially useful predictor of cognitive function
during aging. The positive effect of the dose nearest normal culinary
consumption points to the value of further work on effects of low doses
over the longer term.
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