India, Dec. 23 -- Heart failure is one of the most common cardiac conditions, and its risk increases steadily with age, affecting more than 64 million people worldwide, as per data provided by the World Heart Federation.

To gain a deeper understanding of this deadly condition and its subtle signs, such as swollen ankles, which could indicate weakening of the heart, HT Lifestyle spoke with Dr Pradeep Haranahalli, consultant interventional cardiologist, Manipal Hospital, Whitefield, Bengaluru.

According to Dr Pradeep, this cardiac condition is broadly classified into two categories: heart failure with preserved ejection fraction and heart failure with reduced ejection fraction. "While these categories guide treatment, the symptoms patient...