Original Article
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Abstract

The interaction between arrhythmia episodes and certain lifestyle factors such as obesity and alcohol is well established. There is significant public and professional interest in the role of caffeinated beverages such as coffee, tea, and energy drinks in cardiovascular health. However, many widely held beliefs are not supported by evidence. This study provides a comprehensive review of the impact of caffeinated beverages on cardiac rhythm.

Commentary

This study provides a comprehensive review of the impact of caffeinated beverages on cardiac rhythm.

Drinking up to six cups of coffee a day may be healthy for people with heart problems and who are at risk of cardiac arrest, new research has found. The review of 11 major international studies involving 360,000 people found that while six cups of coffee a day can be healthy, the sweet spot is usually three.

The research found drinking more than six coffees per day can cause problems like an abnormally beating heart. Beyond heart rhythm problems, regular coffee drinkers are at lower risk of heart failure. There is some evidence they may live longer and have better moods with lower rates of depression and stroke.