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This is one of the reasons why I always let the phone hoover a couple of centimeters from my face when talking to someone. Utterly ridiculous!

This is the way you are meant to hold a phone anyway. In the manuals it states this (e.g apple says 5mm-15mm from your head). This is to reduce SAR.

What is SAR?

Summary: Specific Absorption Rate - how much RF energy your head is absorbing.