San Francisco Says Cellphones Need Warning Labels

Actually there does seem to be a fair amount of evidence that there are some radiation risks associated with cell phones held too long near your head.

I believe that in France they do not recommend that young children use cell phones due to studies indicating there are risks for young brains in particular.

It is not as if the French have great fears of radiation either considering their reliance on Atomic Energy.

Radiation ≠ radioactivity.

How much radiation?

What is the alleged method of injurious effects?

Are there any statistics on it?

If so, are they any good, and do they make sense?

Is the amount of cell phone radiation significantly distinguishable from background sources?

Does anyone care? Or do they just issue chicken-little baseless warnings?

Who would follow such warnings, anyway?

Disclosure: I detest cell phones for other reasons, so I don't have this problem in any case.

If you don't like cell phones next to your head, use text instead of voice.

It ain't the radiation that's likely to get you; it's the distraction while driving. That IS worth a few warnings.

Cell phones ringing in concert halls and theaters should be grounds for justifiable homicide. Or at least immediate crunching of the offending device. That's REALLY worth a few warnings, and maybe some legislation.

It has been probably 2 years since I heard of studies indicating elevation of brain tempertues suggesting it might be a good idea to use a headset.

I don't know the exact numbers, but I think cell phones radiate about 1/4 watt (≈ 0.86 Btu/h). Of this, about half (1/8 watt, 0.43 Btu/h) goes into the user's head.

Sun shining on your head radiates something like 20 times this amount of heat into your head. Vasodilation, blood transport, respiration, and perhaps sweating handle this just fine. In either case, a temperature gradient drives the process, which means precisely that there is a slight rise in temperature of one part of the head relative to adjacent parts. The fact of a tiny temperature rise is about as meaningless as can possibly be imagined.

Why do so few people even bother to do some elementary arithmetic before making wild assertions? Not to throw out the baby with the bathwater, because there are valid environmental issues; but I would guess that about 90% of "environmentalism" is just pseudo-environmental nonsense.

Do these politicians have this much time on there hands they have to look for things to do, See how much cost/regulation we can add to business, Can't they just do their jobs , Manage their city , Find ways to cut expenses and lower taxes.

Sorry I must hit my head!

Jim C