Looking fit does not necessarily mean having a healthy heart, according to renowned cardiac surgeon Dr Devi Shetty. In an interview for World Heart Day 2026, he highlighted the gap between physical appearance and cardiovascular health, particularly among people who consider themselves extremely fit.
Dr Shetty said his team sees patients who have suffered heart attacks despite believing they were among the fittest people. He also claimed that around 50% of patients seen after a heart attack had experienced what they described as a silent heart attack, meaning they were unaware of an underlying heart problem.
He raised concerns about young people using dietary supplements, hormones and other substances in an effort to build muscle and appear fitter. According to Dr Shetty, such substances can pose serious cardiovascular risks, including heart attacks and strokes.
The surgeon also discussed the connection between emotional stress and heart disease. He said stress can trigger changes in the body that contribute to a heart attack, particularly among people who already have underlying cardiovascular disease.
On diet, Dr Shetty argued that carbohydrates deserve greater attention in discussions around heart health. He did not suggest eliminating carbohydrates, but said they can contribute significantly to metabolic problems when consumed in excess.
His broader message was that appearance and fitness levels alone cannot establish cardiovascular health. Early detection and appropriate medical evaluation remain important because some heart problems may develop without obvious symptoms.
