Bodyshock

The story of 19-year-old Billy Robbins from Houston, Texas. Weighing 60 stone and reportedly the world's heaviest teenager, he now wants to shed much of his weight and turn his life around.

The story of the world's heaviest woman, Renee Williams, a 64-stone, 29-year-old mother of two who, in a desperate bid to save her life, undergoes major surgery.

This Bodyshock special meets Jyoti Amge, a normal Indian teenager who enjoys going to school and socialising with her friends, but Jyoti is only one foot 11 inches tall.

First broadcast in 2009, as experts considered a review of UK guidelines for treating transgender children, this film follows children in the US who told their parents they were born in the wrong body

Kenneth Brumley, 40, weighed 73 stone when he prepared for a do-or-die operation. This is the story of a father, his family and his country, America, with 15 million morbidly obese people.