Final answer:
The substance that can clog arteries and increase the risk of heart attacks when consumed in excess is cholesterol. High cholesterol and saturated fat intake promote atherosclerosis, which contributes to heart disease. To safeguard heart health, it is essential to limit these fats and maintain a balanced diet, coupled with a healthy lifestyle.
Step-by-step explanation:
When you consume too much of a certain substance, your arteries can begin to clog, increasing your risk of a heart attack. The substance this refers to is cholesterol. Excessive dietary cholesterol and saturated fats, which are predominantly found in animal products such as meat, eggs, and dairy, can lead to atherosclerosis, or hardening of the arteries. This condition increases the risk of heart disease, which is a leading cause of death in the United States.
A diet that includes high amounts of saturated fats, as well as trans fats found in some fried and processed foods, can raise your LDL ('bad') cholesterol levels. It is crucial to limit the intake of these unhealthy fats and follow a balanced diet enriched with fruits, vegetables, whole grains, and lean proteins to protect your cardiovascular health. Additionally, regular physical activity, maintaining a healthy weight, and avoiding smoking are important lifestyle choices that help prevent the buildup of plaque in the arteries.