Researchers at Northumbria University in the United Kingdom have published a randomized, placebo-controlled clinical trial finding that a single cup of peppermint tea produces measurable improvements in memory among healthy adults, according to a study published in the journal Human Psychopharmacology: Clinical and Experimental.
The trial enrolled 25 healthy adult participants, each of whom consumed either 200 milliliters of brewed peppermint tea or a placebo drink, according to the research team. Investigators then administered four distinct memory tests and used near-infrared spectroscopy to monitor blood flow in the prefrontal cortex in real time, the report stated.
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