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Improve Mental Alertness: Iced Green Tea

Improve Mental Alertness: Iced Green Tea

Feel a bit scatterbrained now and then? Make yourself a big jug of sun tea.

Not for the caffeine, but for one heck of a potent compound that could fine-tune your focus. It's theanine.

Your Brain on Theanine
When people in a study consumed theanine (an amino acid) and then performed a challenging mental task that required both looking and listening skills, their brains became quite active. Specifically, the right parietooccipital cortex lit up. That's a part of the brain's circuit system tied to attention span. So if you feel more alert and focused after a tea break, it's no wonder!

Be Like the Brits
More reasons to brew a pot -- or steep a jug -- anytime of year:

Medically reviewed in February 2020.

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