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.

You can do something really radical, which is turn your phone off and reclaim your private life.

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

The question is, do you want to play Russian roulette with your brain?

When the signal is weak, the phone is working more, you drain the battery faster, so only use a phone when the signal is weak in a true emergency.

Brain cancer has a latency in the population of 40 years.