<prompt> Fingqa isihloko: Uma ufuna i-burger, hamba uyothenga ukudla okusheshayo. Abacwaningi baye bathola ukuthi ukuvivinya umzimba kaningana ngaphambi kokudla okunamafutha amaningi kungasiza ekuvikeleni imithambo yegazi emiphumeleni yokudla okungafanele. Imizuzu eyisishiyagalombili nje yokuhamba ngebhayisikili ngamandla amakhulu kwatholakala ukuthi inenzuzo kakhulu kunokuhamba ngesivinini esiphakathi imizuzu engu-25 - izinga eliphakanyisiwe lamanje. Abacwaningi bathi ukuvivinya umzimba kaningana ngaphambi kokudla okunamafutha amaningi kungasiza ekuvikeleni imithambo yegazi emiphumeleni yokudla okungafanele. Isithombe se-file. Ososayensi baseNyuvesi yaseExeter bathi indlela yokuvivinya umzimba ngezikhathi ezimfushane ingase ithandeke kakhudlwana entsheni bambalwa kuyo abafinyelela ngisho nesilinganiso esiphansi sehora lokuvivinya umzimba ngokulinganisela ngosuku. Ukwenza noma yikuphi ukuvivinya umzimba ngaphambi kokudla okunamafutha amaningi kakade kwakwaziwa ukuthi kuvimbela lokhu kuphazamiseka ekusebenzeni kwemithambo yegazi kodwa ucwaningo lwathola ukuthi ukuvivinya umzimba okunamandla kwakungcono ekusebenzeni kwemithambo yegazi kubantu abasha kunokuvivinya umzimba okunamandla okulinganiselwe okwamanje. Lolu cwaningo lwathola ukuthi imizuzu engu - 8 yokuhamba ngebhayisikili ngamandla amakhulu yayizuzisa kakhulu kunokuhamba ngesivinini esiphakathi imizuzu engu - 25. Isithombe se-file. Izifo zenhliziyo nemithambo yegazi ezihlanganisa ukuhlaselwa yisifo senhliziyo nesifo sohlangothi ziyimbangela ehamba phambili yokufa e-UK, futhi abacwaningi bathi izinqubo ezibangela lokhu ziqala ebusheni. Kucatshangwa ukuthi ukuphazamiseka kokusebenza kwemithambo yegazi kuyisigaba sokuqala sale nqubo, futhi lokhu kwaziwa ukuthi kwenzeka emahoreni ambalwa ngemva kokudla ukudla okunamafutha amaningi. Ososayensi bafanisa ukuvivinya umzimba okukhuthele, okwenziwa ngezikhathi ezithile nokuvivinya umzimba okukhuthele ngokusesilinganisweni okuthonya ukusebenza kwemithambo yegazi kubafana namantombazane asemasha ngemva kokudla i-milkshake enamafutha amaningi. Ucwaningo lwabonisa ukuthi cishe imizuzu engu-25 yokuhamba ngebhayisikili ngamandla alinganiselwe kwavimbela ukwehla kokusebenza kwemithambo yegazi ngemuva kokudla okunamafutha amaningi, kodwa ukwenza imizuzu eyisishiyagalombili nje yokuhamba ngebhayisikili ngamandla amakhulu akugcinanga nje ngokuvimbela lokhu kwehla, kodwa kuthuthukise ukusebenza kwemithambo yegazi kuya ezingeni elaliphakeme kunokuzivocavoca okunamandla alinganiselwe. UDkt. Alan Barker, wesikhungo sokucwaninga ngempilo nokuzivocavoca kwezingane,...  <response>: Imizuzu engu-8 yokuhamba ngebhayisikili ngamandla amakhulu yatholakala iwusizo kakhulu kunokuhamba ngesivinini esiphakathi imizuzu engu-25. Ucwaningo olwenziwa eNyuvesi yase-Exeter lwathola ukuthi ukuvivinya umzimba ngaphambi kokudla okunamafutha kungasiza ekunciphiseni imiphumela yokudla okungafanele. Ososayensi bathi indlela yokuqhuma okufushane ingase ikhange kakhulu kwabancane. Izifo zenhliziyo nemithambo yegazi ezihlanganisa ukuhlaselwa yisifo senhliziyo nesifo sohlangothi ziyimbangela ehamba phambili yokufa e-UK. 