Harry Potter actor Daniel Radcliffe has told the Daily Mail newspaper in Britain that he suffers from a little-known brain disorder known as dyspraxia, which often causes clumsiness.
The disorder means that Radcliffe, 19, amongst other things, has difficulty tying his shoe laces.
Radcliffe also revealed that his condition is mild, as serious cases can render it difficult to walk up and down stairs, or to run, hop or perform other physically strenuous tasks.
According to the actor who has achieved international fame through the Harry Potter role, the condition caused him to pursue acting as a career, since it inhibited his performance at school.