Arterial Stiffness in Individuals With Breast Cancer

This study measures arterial stiffness (how rigid the blood vessels are, which is a marker of cardiovascular health) in women with breast cancer to understand how cancer treatment affects heart and blood vessel health. Researchers aim to detect early signs of heart problems caused by cancer therapies. **You may be eligible if...** - You are between 40 and 69 years old - Your heart pumping function (ejection fraction) is above 50% - You do not have known coronary artery disease or significant heart valve problems - You do not have atherosclerotic plaques in the neck arteries - You agree to participate **You may NOT be eligible if...** - You are outside the 40–69 age range - You have pre-existing heart disease - You have carotid artery plaques - You are unwilling or unable to participate Talk to your doctor to see if this trial is right for you.