Visible Veins Explained: Normal Causes, Health Risks, and When to Worry

circulatory system, returning oxygen-depleted blood back to the heart. Unlike arteries, veins are thinner, closer to the surface of the skin, and more affected by external and internal conditions. Several factors—ranging from age and genetics to exercise and temperature—can influence how visible they appear.

Common (and Harmless) Reasons Veins Stand continue reading …