After a long-fought battle from LGBT+ campaigners, this week New Zealand criminalised practices such as conversion therapy that aim to try and alter or suppress someone's sexuality or gender identity.

But was there ever any scientific basis for these practices in the first place? What exactly is the science behind sexuality, and is it something that can ever be changed? For this episode of Science Digest, Dr Michelle Dickinson is joined by clinical psychologist, university lecturer and sexuality expert Dr Rita Csako to discuss the science behind sexuality, and conversion therapy survivor and teacher Paul Stevens to share his experiences with the practice.