Ukadaya wodekha wa Zero-zowonongeka umatengedwa kwambiri ndi opanga mawigi apamwamba a tsitsi la anthu. Kupaka utoto wotentha kwambiri kumawononga zodula tsitsi ndikufupikitsa moyo wautumiki. Njira yatsopano yopaka utoto yocheperako kwambiri imateteza tsitsi kukhala losalala komanso lonyezimira. Zogulitsa zomwe zimakonzedwa ndi ukadaulo uwu zimayikidwa pamsika wapamwamba kwambiri, wokhala ndi mtengo wamagawo 25-40% kuposa mawigi opaka utoto wamba. Ogulitsa mawigi apamwamba ku North America ndi Europe akuchulukitsa kugula kwazinthu zokwezeka zotere.