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Kathleen Connell, known as Kit, turned 100 last week but attributes her sharp mind to regular sessions on her hand-held games console.
"It's absolutely super, I can't speak highly enough of it. I don't know what I would do without it," the grandmother of one said.
"I'll play it in the evening, then I'll have a break and a cup of tea, then I'll go back to playing my Nintendo," she added.
She proudly admitted that Brain Trainer had scored her a mental age of 64-years-old - 36 years younger than her real age.