A blood clot can potentially cause a heart attack if it becomes dislodged from another part of the body and travels to the heart. Factors that may increase your risk of developing a blood clot that could lead to a heart attack include obesity, high cholesterol, or diabetes. If you have any underlying health conditions or believe you may be at risk for a blood clot, it is important to consult with your doctor and make any necessary lifestyle changes in order to prevent a heart attack. These may include quitting smoking, managing any existing health conditions, maintaining a healthy weight, and getting regular exercise. Additionally, taking medications or undergoing other treatment options as recommended by your doctor may help reduce your risk of heart attack.