With Chicago's mayor and chief of police on the take, gangster Al Capone thought he was above the law. It wasn't until the St. Valentine's Day Massacre that Capone fell out of favor with his influential friends, and became “Public Enemy No. 1.”

He was finally nabbed on tax evasion charges and sentenced to 11 years in jail.

That arrested the development of his criminal enterprises. And Chicago was a different town when the con was released in 1939.

On the other hand, arrested development is a crime when it comes to your kid's brain.

A new study from the University of Calgary found that a child's rapidly developing brain and thirst to learn new things come to a halt when he or she is stuck in front of a digital screen, performing repetitive tasks day after day.

Researchers tracked one set of 36 month olds who logged 25 hours per week of screen time, and another set of 36 month olds who watched only 11 hours weekly. (In the U.S., children watch more than 16 hours a week on average.)

They then examined developmental test results in the same children at 60 months, and found that those with increased screen times showed poorer performances on developmental testing.

The same held true for 24 month olds tested again at 36 months.

But it's not enough to cut down on kids' screen time. Replace it with learning opportunities like reading a book or going on an adventure.

It means a lot to a child's growth to spend face-to-face time with you.