Muaj ntau yam uas tuaj yeem ua rau muaj kev nyiam ntawm cov hnab gusset sab; cia peb saib ob peb qho laj thawj no.
Ua ntej tshaj, cov hnab gusset sab muab qee qhov nta zoo tshaj plaws ntawm nws cov khoom ntim ua ntej. Lawv muab qhov ruaj khov ntawm lub hnab thawv thiab qhov yooj yim siv thiab cov qauv ruaj khov ntawm cov hnab sawv ntsug. Cov yam ntxwv no ntawm ob qho kev daws teeb meem ntim khoom yog cov ntsiab lus muag zoo rau lawv ib leeg, thiab cov yam ntxwv no ua ke hauv lub hnab gusset sab ua rau nws hloov pauv qhov kev ua si kiag li.
Ntxiv rau qhov no, tsis yog tsuas yog cov hnab gusset sab xwb kuj nyiam los ntawm cov neeg siv khoom vim lawv qhov kev zoo nkauj, tab sis cov neeg siv khoom kuj nyiam cov hnab gusset sab vim tias lawv tuaj nrog cov txheej ntxiv ntawm cov teeb meem tiv thaiv uas tswj tau qhov zoo thiab kev ncaj ncees ntawm cov khoom uas koj ntim khoom hauv.
Cov yam no, nrog rau ntau lwm yam, ua rau lub hnab gusset sab yog qhov kev xaiv zoo heev ntawm kev daws teeb meem ntim khoom thoob plaws ntau yam lag luam sib txawv.
