Have you ever noticed that just when the outdoor summer fun ramps up, so does the discomfort caused by your varicose veins? You're ready to go and hit the trails when all of a sudden, your legs are more achy and uncomfortable than usual, and you are reminded once again that you have varicose veins. The timing is not a coincidence. Studies show that not only does heat tend to cause veins to dilate, but it also makes it harder for the valves in your veins to do their jobs. Give these methods a try, and you'll be back to the summer fun in no time.