What are some harmfuul things that can hurt the circulatory system?

* Smoking: Smoking damages the blood vessels and increases the risk of heart disease, stroke, and peripheral artery disease.

* High blood pressure: High blood pressure can damage the blood vessels and increase the risk of heart disease, stroke, and kidney disease.

* High cholesterol: High cholesterol can build up in the blood vessels and narrow them, which can lead to heart disease and stroke.

* Diabetes: Diabetes can damage the blood vessels and increase the risk of heart disease, stroke, and kidney disease.

* Obesity: Obesity can increase the risk of heart disease, stroke, and diabetes, all of which can damage the circulatory system.

* Physical inactivity: Physical inactivity can increase the risk of heart disease and stroke.

* Unhealthy diet: A diet high in saturated fat, cholesterol, and sodium can increase the risk of heart disease and stroke.

* Alcohol abuse: Alcohol abuse can damage the heart and blood vessels.

* Drug abuse: Drug abuse can damage the heart and blood vessels.

* Certain medical conditions: Some medical conditions, such as sleep apnea, kidney disease, and thyroid disease, can increase the risk of heart disease and stroke.