> For me my main concern is I use my phone as an alarm clock and it's 30cm (1 foot) from my head all night. I also leave it there since it's my main phone so I

> For me my main concern is I use my phone as an alarm clock and it's 30cm (1 foot) from my head all night. I also leave it there since it's my main phone so I keep it close to me. Hopefully the inverse square law is on my side. The danger comes from when you are actively making calls using voice; my understanding is that transmitting voice data really cranks up the EM radiation. When making phone calls you are safest using a hands-free headset. When the phone is idle at night this is all mostly irrelevant unless you're getting poor signal (for which it cranks up EM to compensate). So, don't sleep with your phone next to your head if you get poor signal. If not, there likely isn't much to worry about. > I'd be curious to see if any studies showed butt cancer was a thing. I'm sure many people keep their phones in their pockets and seems it would exposure people more EM radiation for longer compared to holding the phone and talking into it. When the phone is idle the EM radiation is relatively low. Plus, if it's resting against your thigh there isn't anything critical there to irradiate, compared to having it within two inches of your brain. If anything we might see more skin cancer in the future from this (and some say EM from pocket storage may contribute to infertility), but it beats brain cancer.