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A stranger once waved at Boo James on a bus. She did not think any more of it – until it later emerged it was her mother.
She has a relatively rare condition called face blindness, which means she cannot recognise the faces of her family, friends, or even herself.
Scientists have now launched a study they hope could help train people like Boo to recognise people better.
Boo said for many years she thought she was “from another planet”.
“It is immensely stressful and very emotionally upsetting to sit and dwell