A leading psychosexual therapist has told BBC Newsbeat about a surge in the number of young men suffering sexual health problems because of online pornography.

Angela Gregory says an increasing number of men in their late teens and early twenties are suffering from erectile dysfunction.

Twenty-four-year-old Bethany MacDonald says it isn't just men who suffer because of online pornography. She says she became addicted and was unable to have relationships because of it.

Watch Newsbeat's documentary, Brought up on Porn, on our YouTube channel.

The Victoria Derbyshire programme is broadcast on weekdays between 09:00 and 11:00 on BBC Two and the BBC News channel.