How does a person know their gender? Do they see themselves as male or female, or somewhere in between? More and more people around the world do not identify with the gender they were assigned to at birth. Increasingly, people are expressing their gender identity outside of the 'norms', and the lines of gender are becoming more blurred than ever. This film explores what it actually means to be transgender, and what happens when a person transitions psychologically, physically and biologically. We follow a number of transgender people going through their own transition. From a socially transitioning transwoman to two young transmen embarking on hormones, to a transwoman going through gender confirmation surgery - we get a snapshot into what transitioning and being transgender is really like from those living it. We also hear from experts in the field of gender and find out how modern medicine is helping people to transition their gender. And we explore where gender identity actually comes from.

Horizon Season 56 Episodes...

• s56e01 - Clean Eating - The Dirty Truth
• s56e02 - Hair Care Secrets
• s56e03 - ADHD and Me with Rory Bremner
• s56e04 - Why Did I Go Mad?
• s56e05 - Strange Signals From Outer Space!
• s56e06 - Space Volcanoes
• s56e07 - Antarctica - Ice Station Rescue
• s56e08 - Cyber Attack - The Day the NHS Stopped
• s56e09 - 10 Things You Need to Know About the Future
• s56e10 - Dawn of the Driverless Car
• s56e11 - Dippy and the Whale
• s56e12 - What Makes a Psychopath?
• s56e13 - Mars - A Traveller's Guide
• s56e14 - Goodbye Cassini - Hello Saturn
• s56e15 - Being Transgender

Horizon Show Summary

Horizon is BBC Two's flagship 50-minute science documentary series.

Recognised as the world leader in its field, it regularly wins a sweep of international science, medical and environmental film accolades, and has recently won the Royal Television Society Award and the Prix Italia.

In 2002, the British Academy of Film & Television Arts presented Horizon with the BAFTA Television Award for Best Factual Series or Strand.

In 2003 it won the prestigious Images et Science award for best medical documentary and the Carl von Linne Award at the Living Europe film festival in Sweden. That year, a Horizon co-production with WGBH Boston won the Emmy for best documentary.

In September 2014 it celebrated its 50th anniversary and it continues to enjoy outstanding critical acclaim.