A handful of scientific studies show chicken soup to be medicinal. In one, a doctor at the University of Nebraska Medical Center found that chicken soup helped reduce the mobilization of a certain type of white blood cell, thereby reducing upper respiratory tract inflammation that expresses as cold symptoms (see The Science of Chicken Soup in the NYT). The “Grandma’s Soup” recipe that the doctor used included chicken, onions, sweet potatoes, parsnips, turnips, carrots, celery, parsley, salt and pepper. Add fresh ginger and substitute a little soy sauce for the salt, and you get Chinese Grandma's Soup. So ask a friend or family member to get cooking! Click here to learn how to make "Ginger Chicken Soup with Vegetables."