Iss daur mein amooman larkey larkiyon sey zyada sehat mand dikhaee detey hain. Baalak pan (infancy) ka daur 5,6 saal tak chalta hai.

2. Bachpan (Childhood) 

       5,6 saal ki umer sey ley kar 12 saal tak (larkiyon kay liye) aur 14 saal tak (larkon kay liye) ka arsa bachpan kehlata hai. Iss daur mein bachon kay qadd aur wazen mein izafa hota rehta lekin baalak pan kay daur ki nisbat iss daur mein nashaunuma ki raftaar qadrey kam hoti hai. Bachpan kay daur kay aaghaz mein sehat mand bachey ka wazen 43 pound aur qadd 44 inch ho jata hai aur ikhtetaam per qadd taqreeban 5 feet ho jata hai aur wazen 95 ta 100 pound ho jata hai. Ibteda mein larkon ki nashaunuma ki raftaar larkiyon kay muqabley main taez hoti hai lekin 10 saal ki umar kay ba'ad larkiyon kay qadd aur 11 saal ki umer kay ba'ad unn kay wazen mein larkon ki nisbat zyada izafa honey lagta hai. Larkon ki harkaat aur unki jismani kaarkardagi larkiyon sey behter hoti hai. Larkey larkiyon sey taez aur tanumand hotey hain.

3. Baloghat (Puberty)

       Baloghat (puberty) ka daur larkiyon kay liye larkon ki nisbat 2 saal pehley shuru ho jata hai yani larkiyon kay liye iski ibtidaa amooman 12 saal ki umer mein ho jati hai aur larkon mein 14 saal mein. Ba'az bachiyan 9 saal ki umer mein baaligh ho jati hain. Meien Bahawalpur kay ilaqey mein ek 10 saala maan dekhi. Garam ilaqo'n mein bachey jald jawan ho jatey hain. Isi tarah uryaani, beyhayaee aur fahashi kay mahol mein bhi bachey ek do saal pehley baaligh ho jatey hain. Isliye Europe aur America mein bachey ab nisbatan jald baligh ho jatey hain.