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Coffee vs Green Tea: Which Drink Keeps Your Mind Sharp And Fights Alzheimer’s?


A cup of coffee or green tea can do more than refresh you. Know which one boosts brain power, improves focus and may help protect against Alzheimer’s disease.

Coffee vs Green Tea: Which Drink Keeps Your Mind Sharp And Fights Alzheimer’s?



Written by Muskan Gupta |Published : October 20, 2025 9:09 AM IST


A cup of coffee or a cup of green tea which we drink daily is not merely a comfort ritual. The two beverages are touted as helping to boost energy levels, increase focus and even protect the brain. However, which one is more effective in supercharging the brain and lowering the risk of developing Alzheimer’s? Let us know in detail.

Coffee vs Green Tea: Caffeine Content and Brain Power

Coffee is known to be rich in caffeine. One cup of coffee has between 80 and 120 milligrams of caffeine which stimulates the central nervous system. This would help to enhance short-term memory, attention, and alertness. Green tea, however, has less caffeine with between 20 and 50 milligrams per cup. Although this is less, the moderate levels of caffeine would be slightly more toned down so it does not give a person jittery or a sharp burst of energy that some individuals have when they drink coffee.

Coffee vs Green Tea: Antioxidants That Protect Brain

The drinks contain a lot of antioxidants important in the functioning of the brain. Polyphenols are compounds found in coffee and they help to prevent inflammation and damage to the brain cells. Catechins and L-theanine, which are abundant in green tea, not only combat the presence of free radicals but also enhance the performance of the brain, as well as soothing the mind. Caffeine combined with L-theanine creates focus effects in green tea that are not too stimulating like conventional coffee.

Coffee vs Green Tea: Impact on Alzheimer’s Risk

The accumulation of toxic proteins in the brain is associated with Alzheimer’s disease. The studies indicate that coffee and green tea can also be used to decrease this risk. Antioxidants in coffee can lessen the ageing effects on the brain, and the long period of green tea consumption was correlated with enhanced memory retention and a decrease in the age-related changes in the brain. Again, some studies even indicate that the individuals who take green tea drinks regularly are also less susceptible to getting Alzheimer’s than those who do not take the drink.

Coffee vs Green Tea: Mood and Mental Clarity

Coffee is also known to provide a fast lift in mood. Caffeine induces the release of dopamine, which makes you feel more alert and positive. The impact of green tea on the mood is not as pronounced but stable. L- theanine induces relaxation and acts as an anti-stressor, as an indirect effect on cognitive performance by having a relaxed and focused mind.

Coffee vs Green Tea: Which Works Wonder?

Coffee and green tea are both alternatives which are based on lifestyle and ability. Coffee is best when you require a mental stimulus or like rich flavours. Green tea is very good as it offers a smoother and more sustained focus with the protection of the brain. Some even opt to use the two together by taking coffee in the mornings and green tea in the afternoon so that they bring about balance in energy and relaxation.

The decision on the perfect drink is dependent upon your needs but either of them could be a good addition to your daily routine to help safeguard your brain.



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