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With the widespread information on antioxidants it contains, green tea has become one of the crowd-favorites, more so now that studies have shown it has positive effects on mental health.

Green Tea

Green tea, derived from the unoxidized leaves of the Camellia sinensis bush, is celebrated for its potential health benefits. Among the various types of tea, green tea stands out for its abundance of antioxidants and beneficial polyphenols.

Effects on Mental Health

May Enhance Cognitive Function

Research suggests that green tea consumption may positively impact cognitive function and mood. A study conducted in 2017 indicated that compounds present in green tea, such as caffeine and L-theanine, might contribute to improved cognition and brain function.

Additionally, a more recent study from 2020 proposed a potential link between green tea consumption and a reduced risk of cognitive impairment in middle-aged and older adults. Although promising, further human studies are needed to fully understand this effect.

May Protect Against Brain Aging

Studies have indicated a potential association between green tea consumption and a lower risk of certain markers associated with Alzheimer's disease. Compounds like EGCG and L-theanine found in green tea may play a role in protecting the brain from aging-related deterioration.

Working Memory Enhancement

Recent research suggests a correlation between regular green tea consumption and improved cognitive function, particularly concerning working memory. Studies conducted in China and Japan highlighted the potential benefits of green tea supplementation on executive function and memory, especially in older adults.

Furthermore, a review from 2021 emphasized the anti-stress properties of certain amino acids in green tea, which may contribute to slowing down brain aging processes.

Alzheimer's Disease Risk Reduction

Current evidence supports the notion that green tea may offer protective effects against Alzheimer's disease and dementia. The presence of catechins in green tea, known for their neuroprotective properties, could potentially mitigate inflammation and oxidative stress associated with these neurodegenerative conditions.

Despite promising findings, additional research is necessary to strengthen the evidence supporting the use of green tea for reducing the risk of Alzheimer's disease.

Side Effects and Risks

While green tea is generally safe for adults, certain considerations must be taken into account. People with severe caffeine sensitivities may experience adverse effects such as insomnia or nausea. Additionally, high concentrations of green tea extract could potentially harm liver health in rare cases.

Moreover, the FDA does not regulate green tea supplements, increasing the risk of consuming unsafe substances or those with unproven health benefits. Therefore, consulting a healthcare professional before starting any green tea regimen is advisable.