We don’t need to tell you that a steady diet of junk food is a major drag on your physique, your looks and your health. But new research says it’s even worse than we thought. A recent study found that chowing down on one sausage, egg and cheese sandwich made people’s arteries constrict 24 percent more than normal. And it happened within minutes of eating! In the long run, that can lead to a host of issues, from dull skin to heart attack and stroke. Maybe that value meal isn’t such a good deal after all.