Pite kávu pre zdravý mozog: Nová štúdia Harvardu spája 2 až 3 šálky denne s nižším rizikom demencie

For many of us, coffee is a ritual that starts the day. Whether it's a quick espresso in Bratislava on the way to work or a slow filter morning at home, coffee accompanies us in key moments. However, the latest scientific data from the Harvard T.H. Chan School of Public Health suggest that this popular drink is not just about a caffeine kick, but represents an important tool in the long-term protection of our brain.

Extensive research with a clear result

A study published in February 2026 in the prestigious peer-reviewed journal JAMA brought groundbreaking findings. Researchers analyzed data from more than 130 000 participants whose health status and dietary habits were tracked over an incredible 43 years. Such an extensive timeframe allowed the researchers to eliminate short-term fluctuations and focus on the true impact of long-term coffee consumption on cognitive health.

Hlavným zistením je, že ľudia, ktorí pravidelne konzumujú 2 až 3 šálky kofeínovej kávy denne, majú o 18% nižšie riziko vzniku demencie v porovnaní s tými, ktorí kávu nepijú vôbec alebo len minimálne. Tento benefit sa neprejavil len pri diagnóze demencie, ale aj pri subjektívnom vnímaní straty pamäti či v objektívnych testoch kognitívnych funkcií.

Key parameters and research data

The study relied on data from two massive projects: the Nurses’ Health Study and the Health Professionals Follow-Up Study. Thanks to nearly half a century of monitoring, scientists were able to identify correlations that disappear in short-term research.

• Sample: 131 821 individuals.
• Follow-up duration: Up to 43 years.
• Incidence of dementia: Developed in 11 033 participants during the study.
• Key finding: Regular consumption of 2–3 cups of caffeinated coffee per day reduces the risk of developing dementia by 18% compared to non-coffee drinkers.

The research confirmed that coffee consumers also achieved significantly better results in objective tests of overall cognitive functions. The benefit was evident equally in men and women.

Biological mechanisms: Why caffeine works

The study emphasizes that the protective effect is due to caffeine in combination with bioactive substances. Indeed, a similar risk reduction was not confirmed with decaffeinated coffee.

1. Polyphenols: These antioxidants reduce cellular damage and chronic inflammation, which is the primary trigger of neurodegenerative changes.
2. Caffeine as a neuroprotector: It acts on adenosine receptors in the brain, not only temporarily boosting alertness, but likely protecting neurons from degradation over the long haul.
3. Genetic resilience: The results remained consistent even in individuals with a high genetic predisposition to developing Alzheimer's disease, suggesting that coffee can be an effective intervention tool regardless of heredity.

Specialty coffee as the foundation of a healthy lifestyle

At Goriffee, we make sure that the coffee we roast in our Bratislava roastery is not only delicious, but also pure. Specialty coffee undergoes rigorous quality control processes. Unlike commercial coffees, which frequently lose beneficial compounds due to low-grade beans or aggressive roasting, specialty coffee preserves the maximum of its natural potential.

When you drink coffee with a clear origin, you are sure that you are not consuming beans with defects or molds that could unnecessarily burden the body. The clean profile of coffees from Ethiopia, Colombia, or Brazil, which you can find in our offer, is an ideal way to fulfill the recommended daily dose for the health of your brain.

Prevention that tastes good

Dementia and cognitive decline are challenges faced by more and more people. Since treatment options are still limited after the onset of symptoms, prevention through diet and lifestyle is becoming crucial. According to the study's authors, coffee can be "one of the pieces of the puzzle" in healthy aging.

If you are looking for a way to incorporate these 2 to 3 cups of the highest quality into your day, try our freshly roasted beans. Whether you prefer fruitier flavors for filter or more conservative tones for espresso, investing in quality coffee is ultimately an investment in your health.

Frequently Asked Questions (FAQ)

What amount of coffee is optimal? The study identifies the optimal range as 2–3 cups daily. Higher consumption showed no negative effects on the brain, yet the most pronounced statistical benefit was found right within this range.

Is there a difference between coffee and tea? Yes. The study discovered that tea exhibits similar neuroprotective effects at an intake of 1–2 cups per day, reaffirming the role of caffeine and specific antioxidants.

Can milk and sugar in coffee diminish its benefits? Although the study focused primarily on coffee volume, the general scientific consensus indicates that high sugar intake drives up inflammatory processes in the body, which can counteract the benefits of coffee itself.

Does this also apply to instant coffee? The research analyzed the intake of caffeinated coffee regardless of the preparation method; however, the highest concentration of bioactive substances is naturally found in freshly ground whole-bean coffee.