Add Yahoo as a preferred source to see more of our stories on Google. Research shows that crossword puzzles are effective in improving memory. (Getty Images) (artisteer via Getty Images) There is no ...

I once worked at a propane distributorship where I learned two things that stuck—how to back up a trailer holding a 1,000-gallon tank so that its four steel feet would settle squarely on small blocks.

A decline in memory is a harsh reality for some people as they age and may even mark the start of dementia, such as Alzheimer’s disease. But new research suggests that time spent in virtual reality – ...