New Delhi, July 27 -- Heart attacks may no longer be the number one cause of death in the United States, but a cardiologist warns that a more silent and slow-moving threat is now claiming more lives, and often goes unnoticed until it's too late.

In a recent video posted on July 8, Dr Dmitry Yaranov, a US-based cardiologist, explained that while heart attack-related deaths have dropped by nearly 90% since the 1970s, other chronic heart conditions are quietly emerging as serious health risks.

"We didn't beat heart disease. It just changed its shape," Dr Yaranov said in his video, calling it a "silent trend" the public needs to be more aware of.

He noted that thanks to medical advances, awareness, and early interventions, the number of de...