Asal ahaan waxa loo soo saaray sidii weel xamuul oo loogu talagalay gaadiidka badda, cutubyadan weligood lama fileyn in loo beddelo dhismayaal guri oo deggan. Markii ugu horeysay ee loo qaato hoyga, qofna ma fileyn in guryaha weelka ay u xuubsiiban doonaan qaabab badan, lagu dabaqi doono warshado kala duwan oo u soo bixi doona xal caan ah xilligan casriga ah. Haddaba marka laga reebo ujeedooyinka nolosha, maxay kale oo guryaha weel u adeegi karaan?
Qaab dhismeedka birta ka-hortagga daxalka waa muhiim si loo kordhiyo nolosha adeegga dhismayaasha. Nidaamyada ilaalinta daxalka way kala duwan yihiin iyadoo loo eegayo deegaan adeeg oo kala duwan oo dabiici ah. Qiimayn dhamaystiran waa in loo sameeyaa labadaba diyaarinta dusha sare iyo tallaabooyinka ka hortagga daxalka si loo dhimo kharashaadka dhismaha bilowga ah loona dheereeyo cimriga dhismaha.