: Mus icians ▁from ▁K ō chi ▁Pref ect ure ▁Category : Pe ople ▁from ▁K ō chi ▁Pref ect ure ▁Category : 2 0 th - century ▁male ▁mus icians <0x0A> </s> ▁And r zej ▁S erm ak ▁( born ▁ 2 9 ▁November ▁ 1 9 6 2 ) ▁is ▁a ▁retired ▁Polish ▁football ▁mid f iel der . ▁ ▁References ▁ ▁Category : 1 9 6 2 ▁birth s ▁Category : L iving ▁people ▁Category : Pol ish ▁football ers ▁Category : V ict oria ▁J aw or z no ▁players ▁Category : R uch ▁Chor z ów ▁players ▁Category : H ut nik ▁Now a ▁H uta ▁players ▁Category : G KS ▁Kat ow ice ▁players ▁Category : Associ ation ▁football ▁mid field ers <0x0A> </s> ▁Pe ak ▁b one ▁mass ▁is ▁the ▁maximum ▁amount ▁of ▁b one ▁a ▁person ▁has ▁during ▁their ▁life . ▁It ▁typically ▁occurs ▁in ▁the ▁early ▁ 2 0 s ▁in ▁females ▁and ▁late ▁ 2 0 s ▁in ▁males . ▁Pe ak ▁b one ▁mass ▁is ▁typically ▁lower ▁in ▁females ▁than ▁males , ▁and ▁is ▁also ▁lower ▁in ▁White ▁people ▁and ▁A si ans ▁compared ▁to ▁black ▁populations . ▁A ▁way ▁to ▁determine ▁b one ▁mass ▁is ▁to ▁look ▁at ▁the ▁size ▁and ▁density ▁of ▁the ▁min eral ized ▁t issue ▁in ▁the ▁peri ost e al ▁en velope ▁and ▁using ▁the ▁b one ▁min eral ▁density ▁( B MD ) ▁of ▁a ▁person ▁can ▁determine ▁the ▁strength ▁of ▁that ▁b one .