    Sénten¢e”:: 1: The. number, . of  extremely! obese ‘American: adults:  - those “who. are.’ at'-least- 100  pounds overweight: "> has  quadrupled ‘since. the 19808. ‘to  about 4:million..    Sefitence - 2. The » fuinber of:  Americans considered extremely:  Obese .-or ‘at ‘least 100 pounds  ‘overweight ;has quadrupled since  the 1980s:to’a startling 4:million.;:  the réséarch shows».