Radar, of course, is what cellphone radiation is exactly like. It can be a similar frequency, it's just much weaker power.

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

The reality is, cellphones have to be used safely. They are today like cars and trucks - we can't live without them, but we certainly wouldn't give a car or truck to a toddler to drive. Why are we thinking it's perfectly okay to give a device that the World Health Organization has said is a "possible human carcinogen" to infants and toddlers, and for that matter, schoolchildren?

The average studies of cellphones and brain cancer have studied people who have used cellphones for five years or less. Sometimes eight years. Every study that has actually examined people who have used phones for 10 years or more, and is well designed, finds a 50 percent to an 800 percent increased risk. So that is why the Israelis, the Finnish, the French governments have all issued warnings.

Say no to being on-call 24/7 unless you are an emergency responder. Use a speakerphone, use a headset.

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

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