EVERYDAY SCIENCE

Detailed explanation-1: -In most cases, visible veins aren’t a cause for concern. Exercise, hot weather, sun exposure, and tight clothing can make your veins more noticeable. Aging, genetics, and being overweight may also increase their definition. Diseases that affect the vein are more serious.

Detailed explanation-2: -These veins can be found in your muscles and along your bones. Your deep veins do the important work of moving your oxygen-poor blood back to your heart. In your legs, your deep veins hold about 90% of the blood that travels back to your heart.

Detailed explanation-3: -Your saphenous veins are superficial veins located in your legs. Superficial veins are closer to your skin’s surface, compared with deep veins (which are deep inside your body). Your great saphenous vein extends from your foot to your upper thigh.