The reality is, the way we've used phones and the amount that we've used phones has changed radically in the past five years. When phones were first marketed in the 1990s, it cost, for car phones, $3000 to buy a phone and the average person did not use it that much. They were very, very expensive.

We get dopamine in the brain when we like something a lot. Well, cellphones stimulate dopamine, too. So it really is the case that there are some people who are pretty addicted to these devices.

If you are a physician and someone comes to see you with an absolutely incapacitating headache or a swollen arm, you don't tell them, "Come back in 10 years when I've completed my study and I'll see what I can do for you."

Cellphone and other wireless radiation should be classified as a "probable human carcinogen."

Where people are using phones in rural areas their risk of brain cancer is higher than in urban areas.

Get in the habit of never putting the phone next to your brain or body unless it's a true emergency.

The younger a cell, the faster it grows, the more vulnerable it is to damage.