Australian scientists have identified a critical limit for coffee consumption, exceeding which can negatively affect heart health. According to a large-scale study by the University of South Australia, the risk of cardiovascular disease significantly increases in those who drink more than six cups of coffee a day.
The study involved more than 347,000 people aged 37 to 73. Scientists compared coffee consumption habits with indicators of the state of the cardiovascular system.
The results showed that those who drank more than six cups of coffee a day had a 22% increased risk of heart disease. Excessive caffeine consumption can lead to high blood pressure, heart rhythm disturbances, and other complications.
At the same time, moderate coffee consumption (1–2 cups per day) is not only safe, but can also have positive effects — in particular, improving cognitive function, metabolism, and mood.
Researchers emphasize that it is important to maintain a balance, especially for people with chronic diseases or caffeine sensitivity. If palpitations or blood pressure occur, it is worth reducing the dose or switching to caffeine-free alternatives.

