Right to die campaigners are calling for a change in the law after it was revealed that one in five people who go to Switzerland for an assisted suicide are British.
Supporters say a big increase in so-called "suicide tourism" shows that terminally ill Britons should be able to end their lives at home.
ITV News Correspondent Harry Smith reports.
More top news
Charities warn that sitting down too long can lead to health risks such as type 2 diabetes and cardiovascular disease.
The Labour leader will use a speech to set out the differences between his party and the Conservatives with particular emphasis on the NHS.
Kate will join Prince William on a tour of the Stephen Lawrence Centre before visiting a charity working with disadvantaged young people.