Don't die young. Series 2, part 1, The male reproductive system.

The 1st of an 8-part series in which Dr. Alice Roberts, doctor and anatomist, explores the workings of the human body. This part looks at the male reproductive system. Roberts looks at the differences between men and women physiologically, examines the work of testosterone on the male body, how erections occur and the journey of sperm to penetrate an egg. Ian Roberts has cancer of the prostate; he has surgery to remove his prostate gland.