Oh no, not this shit again...
Ok, mobile phone fearmongers, Physics 101, once more from the top:
There's this form of energy known as the electromagnetic spectrum. It includes all forms of radiating energy. From lowest frequency to highest, those forms of energy are known as radio, microwave, infra-red, visible light, ultraviolet, X-rays, gamma rays, and cosmic rays.
Now the higher the frequency, the greater the energy. The greater the energy, the greater the chance it's going to give you cancer and/or otherwise muck up your cellular structure. Pretty much anything of higher frequency than visible light is going to increase cancer risk. Ultraviolet has a fair chance of giving you cancer, X-rays have a good chance of giving you cancer, and gamma rays will almost certainly cause cancer. Visible light has next to no chance of giving you cancer, and frequencies lower than visible light have no chance of giving you cancer.
Mobile phones operate on microwave frequencies. These frequencies are less than infra-red and much less than visible light. People exposed to visible light alone do not have any higher incidence of cancer than those who might live their lives in darkness. Sunlight can cause cancer, but that's because it contains ultraviolet light in its spectrum. Exposure to ordinary light bulbs and LEDs does not cause cancer.
So, if exposure to a light bulb or LED, which emits higher frequency and higher energy radiation than a mobile phone, does not cause cancer, then you can safely say that exposure to a mobile phone, being lower frequency and lower energy than visible light, does not cause cancer. QED.
So please, scaremongers, if you're going to moan about phones causing cancer, then you'd better get started on the more dangerous visible light from the LEDs on our appliances, because that is more likely to cause cancer than mobile phone microwaves are. Otherwise, stop with the mobile phones and go back to moaning about tanning beds, which really do increase the cancer risk, because they do emit ultraviolet.