Dr. Jonathon Sackner-Bernstein on the bank of the Hudson River near his home. Jonathan Sackner Bernstein, MD, is the director of clinical research and director of the Heart Failure Prevention Program at Northshore Hospital in Long Island, N.Y. He is the lead study author of a clinical trial suggesting a link between the J&J drug Natrecor, used to treat congestive heart failure, and kidney trouble. Sackner-Bernstein is also the author of the book "Before It Happens To You" about preventing heart disease..photo by Gabe Palacio.