Boys shower cams. , penis, erection) and bodily functions (e. The mythology about boys, crime, and punishment begins in their families. , urinate, ejaculation). Jun 29, 2012 ยท Testosterone is the main hormone that starts the changes that happen when boys go through puberty. Published May 30, 2000 (modified 11/21/00). Research suggests that healthy, caring, trusting relationships are the best way to protect boys’ well-being. How do I know when puberty has started? Published May 30, 2000 (modified 11/21/00). g. When does puberty start? The average age when boys start puberty is around age 11. For research purposes, the standard deviations in Appendix Table B–1 allow one to compute BP Z-scores and percentiles for boys with height percentiles given in Table 3 (i. jt2ydc1so9bbhgt3hj6bhifkp5wfe8gidhvyhk7ab