How do you prevent getting varicose veins as you get older?

Compression devices: Compression devices directly address the damaged valves inside your veins. Which leads to venous hypertension. The compression squeeze decreases edema and tissue swelling, helps improve venous return. They are not a cure. But compression is first line therapy. Knee high devices generally are best tolerated.

Compression stocking: Compression stockings can help with leg swelling and possibly slowing the progression of the disease of venous reflux. They do fix the reflux but they can help with the symptomatlogy of swelling, pain and heavyness in the legs. They are considered first line treatment for varicose veins.

Maybe not much: There are several things that can probably help to prevent varicose veins. Unfortunately, even if you do everything right (use prescription compression stockings, don't stand too long, don't gain weight, get exercise, put your feet up as much as you can, etc.) varicose veins can develop anyway. Age and heredity increase tendency to get varicose veins. So there may be little you can do.