Izinto ezitsala amanzi emanzini zizinto ezinokutsala iintlanzi ezijikeleze i-bait, zivuselele umdla wazo, kwaye zikhuthaze inkqubo yokuginya i-bait.Yeyazongezo ezingazondlo kwaye ibandakanya izinto ezahlukeneyo eziluncedo ezikhuthaza kwaye zivuselele ukutyisa kwezilwanyana.Ezi zinto ziquka izinto ezitsala intlanzi kunye ne-bait stimulating substances.

Abatsali bokutya ludidi lwezinto ezisebenza kwinkqubo yokuvumba yentlanzi, ezinokuchaphazela incasa yazo kwaye zikhuthaze indlela yazo yokuziphatha.Ukukhuthaza ukukhula