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.

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.

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

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

A young child's brain has a thinner skull and the brain contains more fluid. The more fluid or fat in any material, the more it absorbs microwave radiation.

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