12-Month Study Shows Matcha Green Tea Enhances Cognitive Health

September 17th, 2024

By John Patterson

Staff Writer for Wake Up World

As we age, maintaining cognitive function and quality sleep becomes increasingly essential. Research shows that lifestyle habits, particularly nutritional intake, can significantly prevent cognitive decline. One fascinating study has emerged focusing on matcha green tea and its effects on cognition and sleep in older adults. This 12-month randomized controlled trial explored whether matcha, known for its rich antioxidants and other beneficial compounds, could help older adults improve their cognitive function and sleep quality. The results are promising.

What is Matcha Green Tea?

Matcha green tea is a powdered green tea that has been used in traditional Japanese tea ceremonies for centuries. It contains epigallocatechin gallate (EGCG), theanine, and caffeine, all known for their cognitive and mood-enhancing properties. In recent years, matcha has gained popularity worldwide due to its potent health benefits.

The Study: Matcha’s Impact on Cognition and Sleep

Research Overview

In this study, researchers sought to discover whether matcha green tea could help older adults experiencing mild cognitive decline. The trial involved 99 participants aged 60-85, all with either subjective cognitive decline or mild cognitive impairment. Participants were divided into two groups: one consumed 2 grams of matcha daily and received a placebo. Over 12 months, researchers tracked changes in cognitive function and sleep quality.

Cognitive Benefits of Matcha

The study found that regular matcha consumption led to notable improvements in emotional perception. Specifically, participants consuming matcha showed a significantly improved ability to perceive facial emotions. According to the researchers, “matcha consumption led to significant improvements in social acuity score,” demonstrating that matcha may uniquely enhance how we interpret and connect with others emotionally.

However, while matcha had a measurable impact on emotional perception, other cognitive assessments, including the Montreal Cognitive Assessment (MoCA) and Alzheimer’s Disease Cooperative Study Activity of Daily Living (ADCS-ADL), did not show significant changes. This suggests that while matcha may enhance certain aspects of cognition, its effects may be more nuanced regarding general cognitive functioning.

Sleep Quality and Matcha

Sleep quality is crucial for cognitive health and overall well-being, especially as we age. In this study, matcha consumption also improved sleep quality. While the results did not reach statistical significance, there was a clear trend toward better sleep in the matcha group. According to the study, “Pittsburgh Sleep Quality Index scores indicated a trend toward improvement” in those who consumed matcha compared to the placebo group.

These results are inspiring, given that sleep issues are a common concern among older adults. By incorporating matcha into their routine, individuals may experience cognitive benefits and improved sleep quality.

Why Matcha?

The benefits of matcha are due to its unique composition. Theanine, a naturally occurring amino acid in matcha, has been shown to promote relaxation and improve attention. EGCG, a powerful antioxidant, protects brain cells from oxidative stress, while caffeine significantly boosts alertness. Together, these compounds create a balanced effect on both cognition and mood without the jitteriness commonly associated with other caffeinated beverages.

A Simple Solution for Cognitive Decline Prevention

One of matcha’s key advantages is its widespread availability and cultural acceptance. As the researchers concluded, “regular consumption of matcha could improve emotional perception and sleep quality in older adults with mild cognitive decline.” Given its long history of use and accessibility, matcha green tea provides an easy, natural way for individuals to support their cognitive health and potentially prevent further decline.

Should You Add Matcha to Your Daily Routine?

While matcha may not be a cure-all for cognitive decline, this study suggests that it offers tangible benefits for both emotional perception and sleep quality in older adults. Incorporating matcha into your diet could be a simple yet powerful strategy to boost mental clarity, emotional well-being, and better sleep.

For those looking to preserve cognitive function and improve sleep, why not add a daily cup of matcha to your routine? With its centuries-old reputation and growing scientific support, matcha may be one of nature’s best-kept secrets for healthy aging.

Practical Tips for Adding Matcha to Your Routine:

  1. Start Your Day with a Matcha Latte
    Swap your morning coffee for a matcha latte. Mix 1–2 teaspoons of matcha powder with warm water, and top it with your favorite milk (almond, oat, or dairy). The caffeine in matcha will give you a gentle energy boost without the jittery side effects of coffee.
  2. Add Matcha to Your Smoothie
    Add one teaspoon of matcha to your morning smoothie for a nutritional boost. It blends well with fruits like bananas, spinach, and berries, providing an extra dose of antioxidants and promoting better focus throughout the day.
  3. Create a Relaxing Afternoon Ritual
    Make matcha tea in the afternoon for a mindful, relaxing break. Whisk matcha powder with hot water for a traditional tea experience that helps ease stress and improve your mood. The calming effects of theanine can help you stay focused while winding down.
  4. Bake with Matcha
    If you prefer to enjoy your matcha in a fun way, try incorporating it into baking. You can add matcha to muffins, pancakes, or even cookies. This way, you can enjoy the benefits of matcha without altering your daily beverage routine.
  5. Make Matcha Overnight Oats
    Mix matcha powder into your overnight oats for a quick and easy breakfast. Add your oats, milk, matcha, and toppings of choice (like chia seeds or berries), and let it sit in the fridge overnight for a nutritious start to your day.

By trying some of these simple methods, you can easily integrate matcha into your daily routine and enjoy its cognitive and sleep-enhancing benefits!

Journal Reference

Effect of matcha green tea on cognitive functions and sleep quality in older adults with cognitive decline: A randomized controlled study over 12 months – https://journals.plos.org/plosone/article?id=10.1371

About the author:

John Patterson is an avid writer and researcher who delves into the latest scientific research. With an insatiable curiosity, he translates complex concepts into accessible narratives, allowing readers to embark on a journey of discovery. John bridges the gap between experts and the public through his work, igniting curiosity and inspiring meaningful conversations about scientific breakthroughs.


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