Health science established long ago that targeting specific areas of fat was impossible. The myth has persisted largely because of the efforts of unscrupulous advertisers. Turn on a TV and you’ll probably find an infomercial selling a dubious, scientifically unsound weight-loss product. Many such products claim to spot reduce fat — for example, certain devices try to eliminate fat by electrically stimulating muscles. Don’t believe the hype. If it sounds too good to be true, it probably is — especially when someone is trying to sell you something.