The Wellcome Collection

Professor James Watson, co-discoverer of the structure of DNA (L), with Dr Mark Walport, Director of the Wellcome Trust Photograph: Felix Clay/freelance

Medicine bottles Photograph: Felix Clay/freelance

Reflections of bottles and chairs used in the medical profession. On the far left is a torture chair Photograph: Felix Clay/freelance

Exhibits from Sir Henry Wellcome's collection, including prosthetic limbs, on display in the Medicine Man gallery Photograph: Felix Clay/freelance

Exhibits, including anatomical models, from Sir Henry Wellcome's collection on display in the Medicine Man gallery Photograph: Felix Clay/freelance

Further exhibits from Sir Henry Wellcome's collection Photograph: Felix Clay/freelance

A portrait of Henry Wellcome Photograph: Felix Clay/freelance

'I Can't help the way I feel' by John Isaacs, 2003 - an obese figure Photograph: Felix Clay/freelance

A visitor looks at a skeleton Photograph: Felix Clay/freelance

Hundreds of diet books Photograph: Felix Clay/freelance

A listening post that can only be heard when seated in the chair Photograph: Felix Clay/freelance