Please read the following paragraph in your mind first −
"There was a time when the Software Industry was just warming up, and the government needed to allot space to the multinational companies, who aggressively lobbied for larger territories to expand their office premise."
Note that, it was very easy to go through the entire paragraph without any issues. However, I’m sure many of you could have speed-read through it.
Now, let's try reading the same paragraph as you would read something aloud, but only by moving your lips and not uttering any sound −
"There was a time when the Software Industry was just warming up, and the government needed to allot space to the multinational companies, who aggressively lobbied for larger territories to expand their office premise."
Did you notice any difference in the way your brain functions in both the cases?
Human brain is trained to accept running text as just information, hence the level of mental exercise is minimum. However, when we try reading it aloud, different factors which are listed below will start coming to our mind which increases brain activity
This is the reason why many experts state the traditional method of book-reading as a complete waste of time, unless it includes exercises where people are encouraged to read from text and speak it aloud, at times at top volumes.