Training your brain may improve focus and attention

Brain-training games are all the rage, but whether they prevent cognitive decline has been debatable. Studies in recent years have gone back and forth on the topic, with no definitive conclusion.

Many people have started playing Wordle or doing crossword puzzles, but those brain ticklers don't appear to improve overall cognition, CNN Chief Medical Correspondent Dr. Sanjay Gupta recently told viewers on CNN.

"What crossword puzzles and word games are probably really good at is making you better at crossword puzzles and word games," Gupta said. "People often use brain-training exercises with the hopes of reducing their risk (of dementia). Truth is, there's not a lot of data on this to suggest it actually reduces your risk for dementia."

But there's a new twist to that scientific con