A couple of generations ago, cider vinegar was the most common household remedy. Now it's making a comeback as scientific research has discovered the secrets of its healing powers. Here, over 50 different ailments get specific, step-by-step treatments. You'll see how cider vinegar relieves colds, headaches, fevers, and muscular aches, purifies the kidneys, heals cuts and bruises, and even slows the aging process.