Varicose veins may be invisible because of fat between your muscles and skin, but they can still cause symptoms like throbbing and swelling in your legs.
Postural orthostatic tachycardia syndrome (POTS) is a rare condition in which your heart rate speeds up by 30 or more beats per minute and can cause extreme fatigue and dizziness.
A genetic predisposition to carry weight around your middle may also have a connection to two major diseases. Learn more about how your belly size may lead to heart disease and type 2 diabetes.
