Why you really NEED to do the Daily Mail’s crossword, according to science

A new Columbia University study recruited more than 100 people aged 55 to 95, who had mild cognitive impairment but not dementia, and asked half to do brain-training.A new Columbia University study recruited more than 100 people aged 55 to 95, who had mild cognitive impairment but not dementia, and asked half to do brain-training.Read MoreHealth News | Mail Online