How much thought do you give to your veins and arteries? You probably exercise because you want to lose weight, build muscle or strengthen your heart. But did you know that your veins and arteries need your attention too? Just like your muscles, your veins and arteries need a workout. When you strengthen them, you may not notice a difference like you would when you work on your back, arms or legs. But that doesn't mean you aren't getting results. However, you may notice when your veins and arteries aren't getting the workout that they need because your legs may swell or feel sore, or you may end up with signs of veinous disease.