What age does your body usually start developing?

When is the usual age that most girls start their periods? and is it unhealthy if you start it late(how late?) or early(how e...

I'm 13 and a half and my mom was too in 1969 (so she's 40 years older than me). I haven't started my period and I'm totally f...

Ok, I am 13, and wondering why my period hasn't started. I know that some people have it as late as 19, but I thought thats u...

when (what age) should i start to see an ob-gyn?

Why does it seem when I am about to start my period that I eat more than usual?

does every boy start puberty at age 14 or do some start earlyer or later?

Can this be removed or does it have to come quite far out before anything gets done? I'm 15 and have been told by the dentist...

what age is it OK to start taking diet pills? i am a little over weight and i want to take them to get me to a nice weight an...

I havent started my period yet!! my mom said she started hers at 11 but I havent started it! does this mean theres something ...

how can you tell the age of a pregnancy ?? I mean, when do you start counting? how do you know how many weeks your in ?