Phones: "radiation causes brain cancer; never sleep with your phone".
As forwarded
"Mobile radiation causes brain tumours. Never keep your phone near your head at night."
Circulates widely as text and video. Specific Indian version with URL and reach: not available. Reach not available
Verdict
Large studies and a 2024 WHO-commissioned review find that using a mobile phone does not raise the risk of brain cancer; phones give off low-energy radio waves that cannot damage DNA the way X-rays can.
What the evidence says
Phones emit radiofrequency energy, a non-ionising form of radiation. Unlike X-rays, it does not have enough energy to damage DNA directly. [S1]
The US National Cancer Institute: "the evidence to date suggests that cell phone use does not cause brain or other kinds of cancer in humans." [S1]
A WHO-commissioned systematic review (2024) of 63 studies found no increased risk of brain cancers with mobile phone use, including after 10 or more years and in the heaviest users; brain cancer rates did not rise as phone use rose. [S2]
How this verdict was reached
-
The forward
Taken exactly as it circulates, not as a summary of it.
-
The evidence
2 sources from the four tiers, strongest first.
- Tier 2 · 2
-
The line
Nothing below tier 4 is counted; every source here is graded.
-
The verdict
Unsupported Every evidence sentence above links to its source. Not reviewed by a doctor; a sourced guide, not medical advice.
What to do instead
Normal phone use is not a cancer risk on current evidence.
If you prefer less exposure, use the speaker or earphones. [S1]
Keeping the phone away from the bed can help sleep; that is a sleep choice, not cancer prevention.
Share card
Sources
- S1US National Cancer Institute. Cell phones and cancer risk (fact sheet).Tier 2
cancer.gov/about-cancer/causes-prevention/risk/radiation/cell-phones-fact-sheet - S2ARPANSA (Australian Government). WHO review finds no link between mobile phone use and brain cancer (summary of Karipidis et al., Environment International 2024).Tier 2 government agency summarising a Tier 1 review
arpansa.gov.au/who-review-finds-no-link-between-mobile-phone-use-and-brain-cancer
Tiers are as graded in the research file; where the file left a source ungraded, the editor graded it against the four tiers. "Circulation only" sources document that a claim circulates and are never cited as evidence. Where a primary paper could not be opened, the page says so in the Honest note.
Reviewed by
Every evidence sentence on this page traces to the public-health and medical sources listed above, but no doctor has reviewed or signed off this page. It is a sourced guide, not medical advice, and it does not replace a doctor. For any symptom, see a doctor; in an emergency, call 108 or 112.
Are you a registered doctor? You can review this page for free. Write to [email protected] with your name and medical council registration number. Once the registration is verified, and with your consent, your name, registration number and review date appear on the pages you reviewed, and any correction you raise is made and dated on the page.
Corrections
No corrections yet. Write to [email protected].
Was this page helpful?
Counted only as a total for this page; no identifier, no cookie. Something wrong or unclear? Write to us.