Switzerland has become well known as a destination for those who want help to end their lives. It is thought more than 100 Britons, mostly terminally ill, have died at Dignitas.
For BBC Radio 4's The Report, Simon Cox went to Switzerland to investigate the reality of the choice those Britons have made.
He also spoke to Exit, Switzerland's oldest right-to-die society, which does not offer its services to foreigners.
Most people it helps to die do so in their own home. However the society does have a room in its Zurich headquarters where some members have ended their lives. "Suicide assistant" Giancarlo Zuco showed Simon Cox the room.
The Report broadcasts on BBC Radio 4 on Thursday 2 April at 2000 BST. You can also listen via the BBC
or download the