India, Oct. 22 -- For millions around the globe, the daily ritual of brewing a warm cup of tea serves as both a comforting anchor and a cherished wellness habit. Long celebrated in traditional medicine and modern nutritional science alike, tea has consistently been associated with a lower incidence of stroke, cognitive decline, and cardiovascular disease. However, fresh scientific insights published in the Journal of Internal Medicine have introduced a vital caveat to this routine: while the beverage itself offers profound protective properties for the heart and blood vessels, the temperature at which it is consumed can dramatically alter its health impact.

The extensive epidemiological study, which tracked nearly half a million adults a...