We live in an age of suveillance. But it has come even closer to home. Sounds like something right out of science fiction. And their observation was that men use only half their brains. Now the secret is out.
Men use the left side of the brain, while women use both left and right sides.
It is probably true that we overdevelop the left analytic and technical side, rather than relying as much on the intuitive and synthetic side. But we all have both sides. We use one when we fix a car, the other when we listen to music. And some of the most deeply human experiences require both sides. An artist needs to have all the technical skills of applying oils and pigments to canvas, but that doesn't make him or her a Cezanne or Picasso.