Varicose veins are swollen, twisted blood vessels that bulge just under your skin’s surface. These blue or purple bulges usually appear in your legs, feet and ankles. They can be painful or itchy. Spider veins, which may surround varicose veins, are smaller red or purple lines that appear close to your skin’s surface.

Hypertension is another name for high blood pressure. It can lead to severe health complications and increase the risk of heart disease, stroke, and sometimes death. Blood pressure is the force exerted by circulating blood against the walls of the body’s arteries, the major blood vessels in the body. Hypertension is when blood pressure is too high. Blood pressure is written as two numbers. The first (systolic) number represents the pressure in blood vessels when the heart contracts or beats. The second (diastolic) number represents the pressure in the vessels when the heart rests between beats. Hypertension is diagnosed if, when it is measured on two different days, the systolic blood pressure readings on both days is ≥140 mmHg and/or the diastolic blood pressure readings on both days is ≥90 mmHg.

Red blood cells are disc-shaped blood cells that carry oxygen to the organs and tissues of your body. Anemia happens when the number of healthy red blood cells in your body is too low.Every part of your body needs a sufficient supply of oxygen to function effectively. Many of the symptoms of anemia, such as fatigue and shortness of breath, are caused by decreased oxygen delivery to your body’s vital organs and tissues.Red blood cells contain an iron-rich protein called hemoglobin. Hemoglobin binds to oxygen in your lungs, allowing red blood cells to carry and deliver it throughout your body. Anemia is measured according to the amount of hemoglobin in your blood.