"Diabetes and heart disease often go hand in hand. Learn how to protect your heart with simple lifestyle changes that can also help you manage diabetes.
Heart disease is very common and serious. It’s the leading cause of death for both men and women in the United States. If you have diabetes, you’re twice as likely to have heart disease or a stroke than someone who doesn’t have diabetes—and at a younger age. The longer you have diabetes, the more likely you are to have heart disease.
But the good news is that you can lower your risk for heart disease and improve your heart health by changing certain lifestyle habits. Those changes will help you manage diabetes better too.
What Is Heart Disease?
Heart disease includes several kinds of problems that affect your heart. The term “cardiovascular disease” is similar but includes all types of heart disease, stroke, and blood vessel disease. The most common type is coronary artery disease, which affects blood flow to the heart.
Coronary artery disease is caused by the buildup of plaque in the walls of the coronary arteries, the blood vessels that supply oxygen and blood to the heart. Plaque is made of cholesterol deposits, which make the inside of arteries narrow and decrease blood flow. This process is called atherosclerosis, or hardening of the arteries. Decreased blood flow to the heart can cause a heart attack. Decreased blood flow to the brain can cause a stroke.
Hardening of the arteries can happen in other parts of the body too. In the legs and feet, it’s called peripheral arterial disease, or PAD. PAD is often the first sign that a person with diabetes has cardiovascular disease.
How Diabetes Affects Your Heart
Over time, high blood sugar can damage blood vessels and the nerves that control your heart. People with diabetes are also more likely to have other conditions that raise the risk for heart disease:
- High blood pressure increases the force of blood through your arteries and can damage artery walls. Having both high blood pressure and diabetes can greatly increase your risk for heart disease.
- Too much LDL (“bad”) cholesterol in your bloodstream can form plaque on damaged artery walls.
- High triglycerides (a type of fat in your blood) and low HDL (“good”) cholesterol or high LDL cholesterol is thought to contribute to hardening of the arteries.
None of these conditions has symptoms. Your doctor can check your blood pressure and do a simple blood test to see if your LDL, HDL, and triglyceride levels are high.
These factors can also raise your risk for heart disease:
- Smoking
- Being overweight or having obesity
- Not getting enough physical activity
- Eating a diet high in saturated fat, trans fat, cholesterol, and sodium (salt)
- Drinking too much alcohol..
Diabetes and the heart
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