Too much too young.

This programme looks at precocious puberty. At the age of five, Alexander and Jackie entered puberty. Alexander is 5 foot tall and has the same amount of testosterone as a fully grown man.Jackie started her periods when she was 4 years old. The parents of the children describe how they first discovered the condition in their children and the children themselves talk about their bodies. Doctors from Great Ormond Street hospital talk about what causes this to happen and possible treatments to slow the process.