Research suggests that the secret to longevity may lie in a cup of coffee. A study published in Vascular Medicine examined residents of Ikaria, Greece, an area known for its high number of centenarians. Gerasimos Siasos, a doctor and professor at the University of Athens, led the investigation into the coffee-drinking habits of older individuals and their health outcomes.
While only 0.1% of Europeans reach the age of 90, this figure rises to 1% on Ikaria. The study focused on coffee consumption due to previous findings indicating that moderate coffee intake could reduce the risk of coronary heart disease. Researchers assessed the impact of coffee on endothelial function, the layer of cells lining blood vessels, which is influenced by lifestyle and aging.
The study involved 142 participants aged 65 and older, analyzing their health data, including diabetes and hypertension, alongside their coffee consumption. Remarkably, over 87% of participants reported drinking boiled Greek coffee daily. Those who consumed more Greek coffee exhibited better endothelial function compared to those who preferred other coffee types.
Even among individuals with high blood pressure, coffee consumption was associated with improved endothelial function without adversely affecting blood pressure. Siasos noted, "Boiled Greek coffee, rich in polyphenols and antioxidants and containing moderate caffeine, appears to offer benefits compared to other coffee beverages." This study adds to the evidence linking cardiovascular health to nutrition.
Greek coffee is particularly rich in polyphenols, potent antioxidants that help neutralize free radicals, thereby reducing the risk of cardiovascular diseases and cancer. Chlorogenic acid, also present, has anti-inflammatory and antioxidant properties that may assist in regulating blood sugar levels and lowering diabetes risk. The antioxidants in coffee help protect cells from damage and reduce inflammation.
Additionally, diterpenes found in unfiltered coffee, such as Greek coffee, may possess anti-cancer and anti-inflammatory properties. The coffee is characterized by moderate caffeine content, providing a gentle boost that can enhance concentration, mood, and physical performance.
To prepare Greek coffee, one needs finely ground Greek coffee, water, and optionally sugar. Using a briki, a special copper or brass pot, pour approximately 60 ml of water for each cup. Add one full teaspoon of coffee per 60 ml of water, and if desired, a bit of sugar or honey. Stir gently to dissolve the coffee and sugar.
Heat the briki over low heat without stirring. Once the coffee begins to rise and foam forms, remove it from the heat to prevent boiling. Carefully pour the coffee into a cup, trying to retain the foam on top. Allow the grounds to settle before enjoying the drink.
Greeks also enjoy various herbal teas, with mountain tea, known as "tsai tou vounou," being particularly popular. This tea, derived from herbs growing in Greek mountains, is celebrated for its anti-inflammatory, antioxidant, and immune-boosting properties.