It is the valves of the ticker that allow nutrient-rich blood to flow through the chambers of your heart. The valves are supposed to close completely after ushering in blood flow. The case isn’t the same for diseased heart valves, they aren’t always able to perform the job as well as they should. Let’s focus on stenosis , or a narrowing of the blood vessels. Stenosis causes a less-than-normal amount of blood to flow to the ticker, causing the muscle to work harder. Leaky valves can also cause trouble. A valve may remain slightly open (instead of entirely closing), letting blood flow backwards, known as regurgitation . Fatigue, dizziness, shortness of breath, chest pain, cyanosis, lightheadedness, chest pain and fluid retention (particularly in the lower limbs) are some signs of valvular heart disease. A solution of valvular heart disease is heart valve repair, or a total replacement of the affected valve in some people because of the damage being too far advanced. Types O...