Is Your Cell Phone Putting You into a “Dead Zone?”

In 1973, Motorola launched the first mobile telephone, affectionately referred to as “the brick” due to its size and shape. Today, nearly all adults and most teens in America rely on their cell phones for a wide variety of tasks.

Recently, I sat in an airport terminal waiting for my plane. I looked around at the myriad of travelers sitting there and noticed that nearly everyone had their heads down, …