I read a study on this, but I can't remember what the conclusion was.
Anyway, yes and no. Inactive minds to tend to degenerate. However, I question folks that are able to "map out" or gauge your brain health from puzzle games.
If you think your daily life isn't challenging, take up something new that will pick your brain. Reading a book, learning to write code, practicing music....something.
i personally think learning new things and challenging yourself mentally is the best way to keep yourself sharp.