The fewer brain cells that die during one of these mini-strokes, the better the chances are of recovering without any brain damage—which is exactly what theanine seems to help with.
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Boston, MA (PRWEB) July 08, 2012
The Doctors Health Press, a publisher of various natural health newsletters, books, and reports, including the popular online Doctors Health Press e-Bulletin, is reporting on a recent study out of Japan that examines the brain-protecting effects of a special compound in tea called “theanine.”
As reported in Doctors Health Press e-Bulletin (http://www.doctorshealthpress.com/brain-function-articles/how-drinking-tea-could-lead-to-better-memory), theanine is found in tea leaves (Camellia sinensis). It has a similar chemical structure to glutamate, which is a neurotransmitter related to memory. The Japanese research team found that once theanine passes through the blood-brain barrier, it exerts a brain-protective effect.
They also found that the tea compound exerts a preventive effect on neuronal cell death after transient cerebral ischemia (a mini-stroke). The fewer brain cells that die during one of these mini-strokes, the better the chances are of recovering without any brain damage—which is exactly what theanine seems to help with.
The Doctors Health Press e-Bulletin article reports that for their study, the research team conducted an investigation of elderly persons with normal or slight cognitive dysfunction. All the volunteers ingested powdered green tea containing a high theanine concentration. They showed significantly lower decline in cognitive function compared with that of a placebo group. This result suggested that theanine might even be able to improve cognitive dysfunction in elderly persons.
The Doctors Health Press e-Bulletin article, “How Drinking Tea Could Lead to Better Memory,” also reports that other studies have suggested that it’s the combination of theanine and caffeine that could help improve cognitive performance. These studies say that a dose of theanine and caffeine prior to performing a demanding cognitive task may significantly improve accuracy and alertness. These two ingredients together could help increase the ability to focus.
(SOURCE: Song, J., et al., "Tea and cognitive health in late life: current evidence and future directions," J. Nutr. Health Aging, Jan. 2012; 16(1): 31–4.)
(SOURCE: Kakuda, T., "Neuroprotective effects of theanine and its preventive effects on cognitive dysfunction," Pharmacol. Res., Aug. 2011; 64(2): 162–8.)
Doctors Health Press e-Bulletin is a daily e-letter providing natural health news with a focus on natural healing through foods, herbs and other breakthrough health alternative treatments. For more information on Doctors Health Press, visit http://www.doctorshealthpress.com.
The Doctors Health Press believes in the healing properties of various superfoods, like pistachios, as well as the benefits of taking vitamins and supplements, Chinese herbal remedies and homeopathy. To see a video outlining the Doctors Health Press' views on homeopathic healing, visit http://www.doctorshealthpress.com/homeopathy.