Myth: Crossing your legs will give you varicose veins.
Truth: Sitting down and crossing your legs won’t cause varicose or spider veins, but standing may. Pronounced veins often crop up on people who either have a genetic predisposition to them (so thank Mom or Dad) or have jobs that require them to stand a lot. Standing makes the vascular network work extra-hard to pump blood from the legs up to the heart. If the valves, which keep blood flowing in one direction within your vessels, aren’t functioning properly, a pooling of blood can occur and result in unsightly veins.
Pregnancy, which puts added pressure on the circulatory system, or a trauma — getting hit by a ball or a car door, for example — can also lead to varicose or spider veins. But simply crossing your legs will not cause them.
If you do spend lots of time on your feet, make sure you spend a few minutes in the evening lying down with your feet slightly raised above head level. Breathe deeply through your nose for a few minutes to allow increased oxygenation.