|In this program, Professor Robert Winston looks at the physical changes brought about by puberty. Footage shot inside the body reveals how sexual development accelerates, periods start, voices break, and spots and body odour make their first appearance as hormones surge through the system.
**Please note that this program/series has been created from masters kindly provided by DECS Tape Services in South Australia. These recordings have been collected over a period dating back to the early 1990s and as such, the picture quality may be of variable standard.**