[Yo-Yo]

I don't use Bluetooth, so perhaps this is a dumb question. But how can one get much closer to my brain than a cell phone held up to my ear, without doing brain surgery or some such?

Many flip phones have the antenna located in the lower half of the phone, which places the antenna near the lower jaw.

With a Bluetooth headset, the antenna is often in the body of the boom, right over (and sometimes inside of) the ear, and just below the temple.

As I said, it's all semantics anyway, and I'll go with your nutrition answer.

[ThePythonicCow]

Many flip phones have the antenna ... near the lower jaw.

Ah ok - oral cancer beats brain cancer <grin>.

Bon Appétit!