Mapangidwe asayansi amabweretsa mawonekedwe oyenera, osavuta komanso owolowa manja ku chipangizocho pomwe machubu abwino amakona anayi omwe amagwiritsidwa ntchito pa chimango amamangidwa bwino ndikusonkhanitsidwa kuti abweretse chitetezo ndi kukhazikika. ndi chitetezo.
Nsalu imateteza bwino ogwiritsa ntchito ku mbale zolemetsa ndipo imapangitsanso chitetezo. Ma bere apamwamba omwe amagwiritsidwa ntchito polumikizana amabweretsa kuyenda kosavuta. Zogwira zamanja zopangidwa momveka bwino zokhala ndi chitonthozo chapamwamba zimapangitsa kukhala kosavuta kwa ogwiritsa ntchito kuyesetsa ndikubweretsa mayendedwe osalala.