[tmjwid]

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.

[meragrin_]

What is SAR?

[mikestew]

https://www.fcc.gov/consumers/guides/specific-absorption-rat...

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