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."

In particular, recently Belgium has banned the sale of a cellphone to a 7-year-old. Turkey has banned ads and advertising to children. So has France for children under 12. India has bans in certain areas. In Bangalore, you cannot sell a cellphone to someone younger than 16. So in different parts of the world, they've taken different steps.

There is apparently an epidemic of tinnitus in younger people. Tinnitus is ringing in the ears and it can be disabling. Tinnitus is associated with cellphone use.

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

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

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."

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