Narrowing of the aortic valve in the heart.
The aortic valve controls blood flow from the left ventricle to the aorta and the rest of the body. It opens when the ventricle contracts and closes when the ventricle relaxes.
Thank heavens for my friend, Sondra! She keeps me on task so that I go do cardio at our local gym. And that’s important not only for my... Read more »