    senvence 4: The nusber of extrenety dbase Aerie  sats. those who are at least 480 pounds ‘overweight  ae Guadrupled since the 2980s to, a0eut A milion «         Sentence 2 The number of Arericans considered  extremely obese , or at least 40 pounds overweight ,    Feeretanupled since the 4908s to 2 gtarting 4 Blom +    the research shows . ot