A daily workout can feel like a health insurance policy. Forty minutes in the gym, a long run or a tough strength session can create a sense that the body is being “taken care of.”

But health does not work that neatly.

Exercise is one important part of fitness, not a complete prescription. A person can exercise regularly and still spend most of the day sitting, sleep poorly, eat an unbalanced diet or carry untreated blood pressure, diabetes or other health risks.

A recent social media post by Alberto Zandi featuring cardiologist Dr Aseem Malhotra makes a similar point from his clinical experience. He described seeing people in their 40s and 50s with severe heart disease despite looking extremely fit and exercising heavily. He argued that exercise does not follow a simple “more is always better” rule.