 Heyaddaha safarka ee aadka u khibrad badan iyo abaalmarinba waxay bixiyaan adeegyo badan oo ballaadhan oo sahamiya dhammaan gobollada kala duwan ee gobollada, kuwaas oo intooda badan ay muujinayaan sifooyin ama goobo gaar ah oo loogu talagalay dadka leh danayn gaar ah meelahaas. 