If you needed one more reason to make sure your vitamin D levels are adequate, Duke-NUS Medical School and Duke University can give it to you. Researchers at these institutions recently conducted a study of elderly Chinese people that linked low vitamin D levels to a condition that we're all hoping to avoid as we age.

If there's one place you should be able to go without worrying about acquiring a disease, it's the hospital. But you and I both know that hospitals are full of bacteria that can be life-threatening. In fact, a review study published in the <em>New England Journal of Medicine</em> found that an estimated two million people acquire infections while they're in the hospital every year — and about 90,000 of them die. Even if you do survive the infection, getting one can add an average of two weeks to your stay. The medical bills for these infections add up to over $9.5 billion.

Do you use antibacterial soaps? Well, if you do, you can say goodbye to them. The FDA says they don't work any better than plain soap. They also say that the makers of the antibacterial soaps have never proven them to be safe.