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Vasovagal syncope - Symptoms and causes - Mayo Clinic
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Chronic Venous Insufficiency Johns Hopkins Medicine
Vasovagal syncope (vay-zoh-VAY-gul SING-kuh-pee) occurs when you faint because your body overreacts to certain triggers, such as the sight of blood or extreme emotional distress. It may also be called neurocardiogenic syncope. The vasovagal syncope trigger causes your heart rate and blood pressure to drop … See more Before you faint due to vasovagal syncope, you may experience some of the following: 1. Pale skin 2. Lightheadedness 3. Tunnel vision — … See more You may not always be able to avoid a vasovagal syncope episode. If you feel like you might faint, lie down and lift your legs. This allows gravity to … See more Vasovagal syncope occurs when the part of your nervous system that regulates heart rate and blood pressure malfunctions in … See more WebHow to Draw Venus. Learn How to Draw Venus, step by step video drawing tutorials for kids and adults. You can choose one of the tutorials below or send us a request of your … WebIt occurs when your valves are damaged or too weak to do their job. Other venous ulcer causes include: High blood pressure (hypertension), which damages blood vessel walls. Venous obstruction, a vein blockage that’s sometimes due to blood clots. Venous reflux, when blood flows backward through weak or damaged valves. gold macaw parrots