When I was young, I had two older sisters, and since I was the youngest in my family, my mom took me around with her all the time. I was forever with her when she was having coffee in the middle of the afternoon with her three sisters. And they would talk about men. I absorbed a lot of that.
The brain sits snugly inside the skull, but its not a completely flush fit - there is still a layer of fluid between bone and soft tissue that serves as a natural shock absorber. Some shocks, however, cant be absorbed, and when the head gets clobbered too hard, the brain can twist or torque or rattle around inside its skeletal casing.
By: Jeffrey Kluger
Children are extremely perceptive and absorb what goes on around them long before they can talk or even comprehend language. They are like finely tuned receivers that pick up much more than is merely said. They are receptive and attuned to every mood, feeling, and change that goes on in people around them.