When you have a cold or the flu, your main goal is probably to get some rest and feel better. But if you live with an aortic condition, it's important to understand how illness can affect your heart, blood pressure, and aorta. A little preparation can help you stay safer and know when to ask for help. How Illness Affects Your Heart and Blood Pressure When you have a fever, your heart usually beats faster as your body fights the infection. If you're not drinking enough fluids,