Apparently, something about them being foreign-owned stimulated them to be more agile and creative, which resulted in more product introductions.

FORBES: Can countries benefit from having their domestic firms acquired by foreign companies?

Dr Ramachandran suggested the amputees "felt" the actions of others because their missing limb provided no feedback to prevent their mirror neurons being stimulated, and therefore not telling them they were not "literally" being touched.

BBC: NEWS | Health | Massage illusion helps amputees

It would be no good offering bullies extra activities which stimulated their behaviour even more - making them the centre of attention - for instance.

BBC: Bullies were more likely to seek risks, the study found

By implanting a device on the retina that receives a signal from the eyeglass-mounted camera, those cells can be stimulated as if receiving light, causing them to transmit an image to the brain.

ENGADGET

Younger people in general tend to be more open to new ideas and pick up new technology so associating with them can help to keep your mind stimulated, which can certainly enhance the quality of your life.

FORBES: How We Sabotage Our Financial Decisions