Research from Harvard University followed nearly 50,000 women for three decades, revealing that those who drank about three cups of coffee daily exhibited the highest rates of 'healthy aging'. This was defined as reaching age 70 without major chronic diseases while retaining physical and mental functions. The study found a direct correlation between coffee consumption and improved health outcomes, contrasting sharply with the negative impacts of cola consumption, indicating that caffeinated coffee specifically aids long-term health.
Of the 47,513 women followed since 1984 as part of the Nurses' Health Study, 3,706 met the strict criteria for healthy aging by 2016.
While past studies have linked coffee to individual health outcomes, our study is the first to assess coffee's impact across multiple domains of aging over three decades.
Each additional cup of coffee per day was associated with a 2% to 5% higher likelihood of healthy aging, with benefits observed up to five small cups daily.
The findings suggest that caffeinated coffee - not tea or decaf - may uniquely support aging trajectories that preserve both mental and physical function.
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