Dr Christian tells the incredible story of Eric, who lost half his face to cancer. Experts at UCL Hospitals have begun rebuilding Eric's face using the latest technology.
The doctors unveil their top tips for keeping your penis tip top, from sexual health to bringing penis envy down to size. They also catch up with three men with penis problems.
When Dr Christian first met Patience, she weighed 36 stone. With the help of son Lakon and Dr Christian, she underwent Britain's most extreme weight loss treatment, in the hope it would save her life.