impact of aging
As we age, the skin gradually becomes thinner and loses elasticity due to changes in collagen production. The layer of fat beneath the skin may also decrease. As a result, blood vessels beneath the skin can become more noticeable.
This is generally a normal consequence of aging and does not necessarily indicate a medical problem.
Genetics and body composition
Genetics plays an important role in determining skin thickness, body-fat distribution, and the position and size of superficial veins. Some people naturally have more visible veins than others.
