Every sailor will agree that nothing can ruin an afternoon sail, a weekend cruise, or a long voyage faster than a bout of seasickness, a blistering sunburn, or an unexpected plunge into cold sea water. These things - and worse -can happen easily, even to the most capable of seamen. Now, Dr. Cohen's book tells you how to avoid - and , if necessary, deal with - the common health problems likely to occur while sailing, so that every sailing experience will be an enjoyable one.