For their size, however, they need a surprising amount of daily physical and mental stimulation.

"What else could it be other than by mental stimulation?"

IT is a great career, full of challenges, learning and mental stimulation.

They also need physical change in routine to provide mental stimulation, even to the point of excitement.

We are not only leading the horse but also giving it mental stimulation.

Interpersonal relationships are often the most important part of a person's life, and the mental stimulation they provide never gets old, even if you do.

And didn't I know how important it was to avoid too much mental stimulation?

Games generally involve mental or physical stimulation, and sometimes both.

In addition, they need a lot of mental and physical stimulation, as this breed is used to having a job to do.

Funny how in the 21st century many of us seem to need constant mental stimulation.