This is Janet Scott (left) and Samantha Williams (right). Both have experienced gender dysphoria and both now live as women. Some estimates suggest as many as 3 million people may experience gender dysphoria. But what causes it? And what can you do about it?
This week we speak to one of the country's leading gender psychiatrists and hear from Janet and Samantha about their experience of gender dysphoria and how they have dealt with it.