<prompt> Fingqa isihloko: Ngokokucwaninga okusha, ukwandisa iminyaka esemthethweni yokubhema ibe ngu - 21 kulo lonke elaseMelika kunganciphisa inani lokufa ngaphambi kwesikhathi cishe ngo - 250 - 000. Lo mbiko, okhishwe yi-Institute of Medicine, wahlola umthelela empilweni yomphakathi wokwandisa iminyaka yobudala e-US ibe ngu-19, 21 noma 25. Futhi yaphetha ngokuthi uma bekufanele inyuswe iye ku-21 manje, bekuyobangela ukufa ngaphambi kwesikhathi okungaba ngu-249 000 kubantu abazalwa phakathi kuka-2000 no-2019. Ukwenyusa iminyaka esemthethweni yokubhema kunganciphisa inani lokufa ngaphambi kwesikhathi eMelika cishe ngo - 250 000. Umbiko uthi lokhu kungasho ukufa kwabantu abangu-45 000 abambalwa ngenxa yomdlavuza wamaphaphu kanye neminyaka engu-4.2 million yokuphila elahlekile isizukulwane esifanayo. Izikhulu zithi nakuba lombiko ungenzi izincomo, unikeza iziqondiso ezingokwesayensi ezifunwa amazwe nezindawo ukuze kuhlolwe izinqubomgomo ezihloselwe ukunciphisa nokususa ukusetshenziswa kukagwayi yintsha. Iphinde iqinise imizamo evuselelwe kahulumeni yokunciphisa ukufa nezifo ezibangelwa ugwayi ngemva nje kokugubha iminyaka engu-50 yombiko ka-surgeon-general ka-1964 owaqala inhlangano elwa nokubhema. Izifundazwe eziningi ziye zabeka iminyaka yobudala engu-18, okuyisilinganiso esiphansi sikahulumeni. Izifundazwe ezine - i - Alabama, i - Alaska, i - New Jersey ne - Utah - ziye zabeka iminyaka yobudala engu - 19 futhi izindawo eziningana, kuhlanganise neDolobha laseNew York, ziye zenyusa iminyaka yobudala obuncane yaba ngu - 21. Izifundazwe eziningi ziye zabeka ubudala obungokomthetho bokuthenga ugwayi ku-18 - okuyisilinganiso esiphansi sikahulumeni. Kodwa kwezinye izindawo kumelwe ube mdala:. 19: e-Alabama, e-Alaska, eNew Jersey, e-Utah. 21: Isifunda saseSuffolk; iDolobha laseNew York; i-Evanston, e-Illinois; iColumbia, eMissouri; amadolobha amaningi eMassachusetts; i-Englewood, eNew Jersey kanye nesifunda saseHawaii, eHawaii. Ukwenyusa iminyaka yobudala obusezweni kuzodinga isenzo seCongress, esagunyaza lo mbiko emthethweni ka-2009 owanikeza i-Food and Drug Administration igunya lokulawula ugwayi. Imiphumela yocwaningo eyakhishwa yi-Centers for Disease Control and Prevention ngoJune yabonisa ukuthi amaphesenti angaphansi kuka-16 entsha ayebheme ugwayi enyangeni edlule - okuyizinga eliphansi kakhulu selokhu uhulumeni aqala ukwenza...  <response>: Umbiko uhlole umthelela empilweni yomphakathi wokukhuphuka kweminyaka yobudala ibe ngu-19, 21 no-25. Ukukhulisa iminyaka yobudala engokomthetho ibe ngu - 21 kungaholela ekufeni kwabantu ngaphambi kwesikhathi okungu - 249 000. Okwamanje izifundazwe eziningi zibeke iminyaka yobudala engu-18, okuyisilinganiso esiphansi sikahulumeni. Kodwa i-Alaska, i-Alabama, i-Utah neNew Jersey kakade seyibeke iminyaka engu-19 ubudala. 