Smoking (and similar exposures) should not be blamed for cancer; only massive exposures such as Hiroshima cause cancer, and there is 'no such thing as early death' from smoking.
Original statement
اصل التدخين هو اللي جاب السرطان اصل المايكروويف هو اللي جاب السرطان اصل السرطان جه من الدخان اصل السرطان جه من اكل المواد الحافظه اصل السرطان ايه يا عم مالك في ايه
verbatim according to source. Translation by the project; the Arabic wording is authoritative.
Translation
Smoking (and similar exposures) should not be blamed for cancer; only massive exposures such as Hiroshima cause cancer, and there is 'no such thing as early death' from smoking.
Origin
- Source status
- Video transcript (own words)
- Attribution
- Elawady (machine transcript)
- Video
- السرطان ١ (Open source)
- Published
- 26 January 2025
- Timestamp
- 0:24:03 (location in the original video’s automatic YouTube caption track; confirms where the words occur, not who speaks)
- Attribution uncertainty
- Archive transcript (YouTube CC or AI-generated); no timestamps; spelling errors of the machine transcript are kept verbatim; wording may deviate from the spoken words.
- Population concerned
General
- Geographic restriction by Elawady
none found
Diverging source versions
السجائر بتسبب اه عق وبتسبب موت مبكر حتى ده كفر ما فيش حاجه اسمها موت مبكر
- Source status
- Video transcript (own words)
- Attribution
- Elawady (machine transcript)
- Video
- Dr Diaa Al Awady د ضياء العوضي is live! من الجرثومة الي السكر؟!! (Open source)
- Published
- 7 December 2025
- Timestamp
- 0:27:42 (location in the original video’s automatic YouTube caption track; confirms where the words occur, not who speaks)
Scientific assessment
False – The statement contradicts the robust evidence.
Certainty of evidence: high – Further research is very unlikely to change the assessment.
1. What was claimed?
Rejecting the view that smoking causes cancer; dismissing early death from smoking.
2. What is demonstrably correct?
Microwave ovens are not an established cause of cancer (no evidence reviewed suggesting they are); the claim about massive radiation doses causing cancer is correct.
3. What is wrong or exaggerated?
Continuing smokers died about 10 years earlier than non-smokers; stopping at 30 avoided almost all excess risk (I-CAN-01). Smoking accounts for 19.3% of cancer cases and 28.5% of cancer deaths in the US (I-CAN-02) and is the leading risk factor for cancer deaths globally (I-CAN-03). Smoking also multiplies radiotherapy harms (I-CHM-06).
4. What remains unclear?
Nothing material; smoking is one of the best-established causes of cancer. Egypt-specific attributable fractions were not reviewed.
5. Which studies support it?
None. The side remark that massive radiation exposure causes cancer is correct but does not support dismissing smoking.
6. Which studies contradict it?
I-CAN-01, I-CAN-02, I-CAN-03, I-CHM-06, I-CHM-12.
7. What applies to Germany and Europe?
Tobacco control is central in EU cancer prevention.
8. What is known about Egypt?
Tobacco use is common in Egypt (not quantified here); the evidence applies.
9. What practical conclusion is appropriate?
Not smoking and quitting smoking are among the most effective ways to prevent cancer.
Assessment details
- Rationale for certainty of evidence
Smoking is one of the best-established human carcinogens with 50-year cohort data and population-level attributable fractions.
- Source quality
Machine transcripts; ironic tone possible but meaning clear in context.
- Regional transferability
High.
- Regional scope of the claim
- general (biological/medical)
- Last reviewed
- 25 October 2026 provisional
In plain language
In a video Dr. Diaa mocked the idea that smoking causes cancer, and elsewhere said there is no 'early death' from smoking. This is wrong. A 50-year study of British doctors showed smokers died about ten years earlier, and quitting gave most of these years back. Smoking causes about one in five cancers and more than a quarter of cancer deaths in the USA.
Studies on this claim
Studies supporting the claim (0)
No studies in this group.
Studies contradicting or limiting the claim (5)
-
Smokers die about ten years earlier; quitting gives years back
Doll R et al.. BMJ 2004 · PMID 15213107 · DOI 10.1136/bmj.38142.554479.AECohort studyindependent cross-checkabstract only checked★ key studySmoking tripled death rates; stopping at 30 avoided almost all the excess risk.
Smoking causes cancer and early death
Does the study support the specific claim? No · Methodological quality: high · Certainty of evidence: see overall assessment of the claim
Original publication · Scientific details
Study explained simply
- What did the researchers want to find out?
Measure smoking hazards over 50 years.
- How was the study done?
Prospective cohort.
- How many people, animals or samples were studied?
34,439 doctors.
- What was actually found?
Smokers die ~10 years earlier.
- How large was the observed effect?
3-fold mortality.
- What do the results mean in everyday life?
Stopping smoking at any age helps.
- What are the study's limitations?
Men only.
- What does it say about Elawady's specific claim?
Contradicts smoking dismissal.
- Do the results apply to Germany and Europe?
High.
- What can explicitly not be concluded from this study?
Effects of other tobacco products.
-
Four in ten cancers in the USA are linked to avoidable risk factors, led by smoking
Islami F et al.. CA Cancer J Clin 2024 · PMID 38990124 · DOI 10.3322/caac.21858Risk assessmentindependent cross-checkabstract only checked★ key studySmoking accounted for 19% of cancers and 29% of cancer deaths; excess weight and alcohol followed.
Smoking leading cause
Does the study support the specific claim? Partly · Methodological quality: moderate · Certainty of evidence: see overall assessment of the claim
Original publication · Scientific details
Study explained simply
- What did the researchers want to find out?
Estimate preventable cancers.
- How was the study done?
PAF analysis.
- How many people, animals or samples were studied?
US 2019.
- What was actually found?
40% of cases attributable.
- How large was the observed effect?
Smoking 19.3%/28.5%.
- What do the results mean in everyday life?
Not smoking, healthy weight, less alcohol and a diet with fibre, fruit and vegetables lower risk.
- What are the study's limitations?
Model assumptions.
- What does it say about Elawady's specific claim?
Diet matters but is not the main cause.
- Do the results apply to Germany and Europe?
Moderate.
- What can explicitly not be concluded from this study?
Individual cause.
-
Smoking, alcohol and excess weight lead global avoidable cancer deaths
GBD 2019 Cancer Risk Factors Collaborators. Lancet 2022 · PMID 35988567 · DOI 10.1016/S0140-6736(22)01438-6Risk assessmentindependent cross-checkfull text checked44% of cancer deaths worldwide in 2019 were attributable to known risk factors, smoking first; diet accounted for about 5-6% of cancer burden.
Smoking leading
Does the study support the specific claim? Partly · Methodological quality: moderate · Certainty of evidence: see overall assessment of the claim
Original publication · Scientific details
Study explained simply
- What did the researchers want to find out?
Global attributable cancer burden.
- How was the study done?
GBD modelling.
- How many people, animals or samples were studied?
204 countries.
- What was actually found?
4.45 million cancer deaths (44.4%) attributable to modelled risks in 2019; tobacco 33.9% of male and 10.7% of female cancer DALYs; dietary risks 5.9% and 5.1%.
- How large was the observed effect?
4.45 million deaths.
- What do the results mean in everyday life?
Avoid tobacco and alcohol, keep healthy weight.
- What are the study's limitations?
Model-based estimates; sparse data in many countries; infections and UV not included.
- What does it say about Elawady's specific claim?
Diet is one factor among several.
- Do the results apply to Germany and Europe?
High.
- What can explicitly not be concluded from this study?
That the remaining 56% of cancer deaths have no external cause (infections and UV were not modelled); individual risk for a given person.
-
With modern techniques, radiotherapy's heart and lung risks are small for non-smokers
Taylor C et al.. J Clin Oncol 2017 · PMID 28319436 · DOI 10.1200/JCO.2016.72.0722Meta-analysisindependent cross-checkabstract only checked★ key studyAbout 0.3% risk of radiation-related heart death or lung cancer in non-smokers, higher in smokers.
Smoking multiplies RT harms
Does the study support the specific claim? Partly · Methodological quality: high · Certainty of evidence: see overall assessment of the claim
Original publication · Scientific details
Study explained simply
- What did the researchers want to find out?
Estimate absolute RT risks.
- How was the study done?
Dose review + IPD meta-analysis.
- How many people, animals or samples were studied?
40,781 women.
- What was actually found?
Small absolute risks; smoking key.
- How large was the observed effect?
Cardiac mortality RR 1.30.
- What do the results mean in everyday life?
Stop smoking before/after radiotherapy.
- What are the study's limitations?
Smoking modelled.
- What does it say about Elawady's specific claim?
Puts Darby in perspective.
- Do the results apply to Germany and Europe?
High.
- What can explicitly not be concluded from this study?
Individual dose-specific risk.
-
Cancer death rates in the USA keep falling
Siegel RL et al.. CA Cancer J Clin 2024 · PMID 38230766 · DOI 10.3322/caac.21820Otherindependent cross-checkabstract only checkedMore than 4 million cancer deaths averted since 1991 thanks to less smoking, earlier detection and better treatment.
Smoking reduction credited
Does the study support the specific claim? No · Methodological quality: moderate · Certainty of evidence: see overall assessment of the claim
Original publication · Scientific details
Study explained simply
- What did the researchers want to find out?
Report cancer statistics.
- How was the study done?
Registry data.
- How many people, animals or samples were studied?
US population.
- What was actually found?
Declining mortality.
- How large was the observed effect?
>4 million deaths averted.
- What do the results mean in everyday life?
Prevention and treatment both work.
- What are the study's limitations?
Descriptive.
- What does it say about Elawady's specific claim?
Benefit context.
- Do the results apply to Germany and Europe?
Moderate.
- What can explicitly not be concluded from this study?
Share due to treatment alone.
No study in this group is marked as key.
Studies with mixed or unclear results (0)
No studies in this group.
Regional context
Germany / EU
Tobacco control is central in EU cancer prevention.
Egypt
Tobacco use is common in Egypt (not quantified here); the evidence applies.
What applies in my country?
General scientific assessment
False Smoking is a major proven cause of cancer and early death.
This statement concerns biological or medical relationships. The scientific assessment above applies regardless of the country; country-specific food data do not change it.
References
- Mortality in relation to smoking: 50 years' observations on male British doctors.. Doll R et al.. BMJ 2004 · PMID 15213107 · DOI 10.1136/bmj.38142.554479.AE
- Proportion and number of cancer cases and deaths attributable to potentially modifiable risk factors in the United States, 2019.. Islami F et al.. CA Cancer J Clin 2024 · PMID 38990124 · DOI 10.3322/caac.21858
- The global burden of cancer attributable to risk factors, 2010-19: a systematic analysis for the Global Burden of Disease Study 2019.. GBD 2019 Cancer Risk Factors Collaborators. Lancet 2022 · PMID 35988567 · DOI 10.1016/S0140-6736(22)01438-6
- Estimating the Risks of Breast Cancer Radiotherapy: Evidence From Modern Radiation Doses to the Lungs and Heart and From Previous Randomized Trials.. Taylor C et al.. J Clin Oncol 2017 · PMID 28319436 · DOI 10.1200/JCO.2016.72.0722
- Cancer statistics, 2024.. Siegel RL et al.. CA Cancer J Clin 2024 · PMID 38230766 · DOI 10.3322/caac.21820