What happens to veins when they lose their elasticity?

When veins lose their elasticity, they become less able to expand and contract as blood flows through them. This can lead to a condition known as venous insufficiency, where blood pools in the veins, causing swelling, discomfort, and increased risk of varicose veins or blood clots. The overall efficiency of blood circulation may decline, potentially leading to more serious cardiovascular issues. Additionally, the valves within the veins may not function effectively, further exacerbating the problem.