"Jay S. Cohen, MD, " is an Associate Professor (Voluntary) of Family and Preventive Medicine at the University of California, San Diego. Dr. Cohen is a widely recognized expert on prescription drugs and their natural alternatives. He has published scientific papers in leading medical journals and has written articles for "Newsweek, " "Bottom Line Health, " and "Life Extension Magazine". A highly sought-after speaker, Dr. Cohen is also the founder of the Center for the Prevention of Medication Side Effects, which offers commentary on current issues in medical care.