Some newly published medical research reveals that doing crosswords, playing cards and partaking in other mind-stretching activities can have a significant impact in delaying the onset of memory loss and dementia, in old age. The research found that people who did crosswords 4 days a week had a 47% reduced risk of suffering from dementia, than people who did crosswords only once a week. So get your newspaper or puzzle books out and start doing crosswords. It really goes back to the old adage - "use it or lose it". You can view more details here on BUPA.