Three people are exonerated after spending years in prison for crimes they did not commit; how mistakes happen in the justice system; how the trauma of a wrongful conviction affects the body.

A woman with six feet of excess skin; a man tormented by large keloids; a child born with an extra set of limbs; rapper Siya reveals her new smile; a mother covered in tiny tumors; Rosie Mercado; saving baby teeth; new medical guidelines.

Blink 182 drummer Travis Barker; Instagram celebrity Doug the Pug; packaged meat; a rehab clinic treats addicts with marijuana; growing one's own medicine; the real cost of children.