All your favourites from Arnold Schwarzenegger to The Rock boast of a pretty impressive bicep vein. In fact it is almost portrayed as a sign of fitness. Go to any bodybuilding competition and you will find men with impressive veins. But is vascularity really a sign of fitness? Let us hear it from Sagar Pednekar Fitness Expert Gold s Gym India. Why do your veins pop? Here s typically why your veins pop. Your arteries carry blood away from your heart to the tissues in your body. Since veins pump the blood back toward your heart. When the venous outflow