They grow taller, their penis grows longer, they grow body hair (chest, armpits, pubic region), their voice gets deeper, their hormones increase, their mental capacity grows more mature.
no
Yep. Lots of it.
testosterone
During puberty, some boys become very irritable. Some become aggressive and disrespectful. All this is caused by hormonal imbalance
Boys go through puberty too, so they don't mind
Yes, but they still may not be as much into boys as boys are into them.
a
Yes, development of the human body begins mainly in puberty.
The scrotum, the sack contains testis. During puberty testis increase in size and the scrotum also becomes bigger.
Well, they don't get there period
Boys' shoulders broaden due to the rib cage expansion during puberty. This is to allow lung growth so a man can supply his muscles with more oxygen.
no