Which of the following conditions can be a risk factor for heart attacks?

Hypertension, commonly known as high blood pressure, is a significant risk factor for heart attacks. This condition puts extra strain on the heart and blood vessels, leading to damage over time. High blood pressure can contribute to the hardening of arteries (atherosclerosis), which narrows the arteries and increases the likelihood of blockages that can result in a heart attack. By managing hypertension through lifestyle changes and medication if necessary, individuals can significantly reduce their risk of heart-related issues.

In contrast, low blood sugar and low body temperature do not directly correlate with an increased risk of heart attacks. Regular physical activity is typically associated with reduced cardiovascular risk, as it helps maintain a healthy weight, lowers blood pressure, and improves overall heart health.