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See other stories about NHS people

Insulin used to treat diabetes is taken from pigs and sheep. The substance produced is exactly the same as that found in humans with the same sugar stabilizing effect.

Last Tuesday Night

Warning: This film contains strong language.

Last Tuesday Night is a short film which highlights some of the different roles that people fill in order to help patients when they fall ill or are injured in an accident. Actors play the parts of the characters you see, but we also hear from several people who work in the NHS across London to find out what they do, why they enjoy their work and some of the things you should think about if considering working in health and social care.

There are over 300 careers in the NHS, all of which we couldn't possibly hear about, so we have selected some interesting ones.

You can also download Last Tuesday Night now for iTunes, iPhone, iPod or other video player.