Does using a mobile phone cause brain cancer?

Large studies and population trends have not shown an increase in brain tumours matching the explosion in mobile use. Radiofrequency energy from phones is non-ionising and doesn't damage DNA the way X-rays do. Evidence to date is reassuring.

Brain tumour incidence has stayed broadly flat in national registries over decades of rapidly rising mobile phone use, which argues against a meaningful effect.

There is a better reason to move it: notifications and light fragment sleep, and sleep loss has clearer health consequences than the radiofrequency exposure.