Which of the following is considered a major risk factor for coronary heart disease?

Hypertension, or high blood pressure, is considered a major risk factor for coronary heart disease because it places extra strain on the heart and blood vessels. Over time, this increased pressure can cause damage to the arteries and lead to the buildup of plaque, which narrows and hardens the arteries, ultimately increasing the risk of heart attacks and other cardiovascular events. Managing blood pressure through lifestyle changes and, when necessary, medication is crucial for reducing the risk of heart disease.

The other options are related to heart health but do not fit the profile of major risk factors. Low cholesterol levels are typically associated with a lower risk of heart disease, lack of stress generally contributes to better overall health, and maintaining a healthy body weight directly supports cardiovascular health rather than functioning as a risk factor. Thus, hypertension stands out as a significant contributor to the development of coronary heart disease.