David Gandy & Sarah Ann Macklin attended Lord Coe's 'Journey to 2012' event for the PSP (Progressive Supranuclear Palsy) Association held at The Dorchester Hotel last nigh in London.
Here is a bit of insight into what PSP is (NINDS): PSP is a rare brain disorder that causes serious and progressive problems with the control of gait and balance along with complex eye movement and thinking problems. One of the classic signs of the disease is an inability to aim the eyes properly, which occurs because of lesions in the area of the brain that coordinates eye movements.
PSP was first described as a distinct disorder in 1964 when three scientists published a paper that distinguished the condition from Parkinsons disease. It is sometimes referred to as Steele-Richardson-Olszewski syndrome.
There is currently no effective treatment for PSP, although scientists are searching for better ways to manage the disease.