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190 votes
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Has the cure to cancer been hidden by pharmaceutical companies?

No, this has no credibility whatsoever, for a number of very good reasons, each of which on its own would be sufficient to debunk the hypothesis: Individual motivation: people don't get into cancer ...
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185 votes
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Is eating processed meat as bad as smoking for causing cancer?

According to the US CDC: People who smoke cigarettes are 15 to 30 times more likely to get lung cancer or die from lung cancer than people who do not smoke According to Carcinogenicity of ...
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114 votes
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If smoking causes lung cancer, why has a decline in smoking not led to a decline in lung cancer?

The cancer.gov site you referenced says that the median age of diagnosis is 70. That implies that you smoke and then, later in life/time, you may be diagnosed with cancer. Therefore, for example, ...
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  • 26.3k
94 votes
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Do 80 to 90 percent of lifelong smokers never develop lung cancer?

This study from 2018 has a table (Fig.3) for lifetime risk of lung cancer, with that being ~12-14% for current smoker, and less than 2% for never-smoker. So, it is true that 80-90 percent of smokers ...
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  • 998
83 votes

Is there reliable evidence that depleted uranium from the 1999 NATO bombing is causing cancer in Serbia?

There are several points to consider here. 1) Depleted Uranium is not that much "depleted". "Depleted uranium," the byproduct of the enrichment process, has about 0.002 percent 234U, 0.2 percent ...
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  • 18.9k
78 votes
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Was Eddie Van Halen's tongue cancer caused by metal guitar picks?

WP:Copper toxicity#EPA cancer data: The EPA lists no evidence for human cancer incidence connected with copper, and lists animal evidence linking copper to cancer as "inadequate". There is ...
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  • 18.9k
77 votes

Is eating processed meat as bad as smoking for causing cancer?

Does the claim “processed meat causes as much cancer as smoking in relative terms” hold up to scrutiny? No, it does not. The WHO did indeed classify processed meat as carcinogenic to humans. Going to ...
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  • 11.2k
65 votes

Do 80 to 90 percent of lifelong smokers never develop lung cancer?

Note that the claim was specifically made about lung cancer. Smoking can cause many different types of cancer. Someone who dies from smoking-related throat, oral, stomach, etc. cancer wouldn't be ...
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  • 843
63 votes
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Do hot peppers kill cancer?

To the best of my knowledge, the paper cited by the BBC is "Vanilloid receptor agonists and antagonists are mitochondrial inhibitors: how vanilloids cause non-vanilloid receptor mediated cell death" (...
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  • 876
43 votes
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Lung cancer due to inhaling oily steam in the restaurant kitchen for a long period of time

There have been a number of case-control studies on Chinese women. Here are three open-access papers: Ko et al. (2000). "Chinese Food Cooking and Lung Cancer in Women Nonsmokers". Amer. J. ...
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  • 1,766
40 votes
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Does Frankincense cure cancer?

Ok, there appears to be something to this. The description of how they claim it works is pure word salad. Nevertheless I've been surprised checking this out, this would appear to be one of those ...
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  • 9,426
40 votes

Is there reliable evidence that depleted uranium from the 1999 NATO bombing is causing cancer in Serbia?

Check out this paper: Cancer mortality in Serbia, 1991–2015, published in 2018. The study is based on official data on cancer-related deaths. The conclusions drawn by the authors are: Overall cancer ...
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38 votes
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Do vaccines against childhood diseases leave the immune system less capable of fighting cancer?

Claim There are many debunked claims about possible dangers of vaccines in this 4chan thread, including the old standby that vaccines cause autism, which is dealt with in this Skeptics Q&A. I ...
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  • 3,152
34 votes

Does burning your food increase your risk of getting cancer?

There is no evidence that the acrylamide produced by browned food causes measurable harm to people The big worry about browning or burning food is the presence of acrylamide which is produced by the ...
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  • 54.9k
19 votes
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Do elephants rarely get cancer?

Do "elephants have 40 cancer-fighting proteins in their DNA?" Elephants have 40 copies of a single cancer-fighting protein. This means they have a lot more of that protein than humans. Do elephants ...
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17 votes
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Can smoking marijuana reduce the risk of cancer in cigarette smokers?

There is some truth to this claim although I would not rate the study which I source here as high-quality evidence. Chen AL, Chen TJ, Braverman ER, Acuri V, Kemer M, Varshavskiy M, Braverman D, ...
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17 votes
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Are the methods and conclusions of the study "Clear connection between wireless devices and cancer, experts say" sound?

Problem 1: "Table 1. Publications which reported positive findings on oxidative stress caused by RFR exposure of cellsin vitro." Problem 2: "Table 2. Publications which reported positive ...
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  • 9,426
17 votes
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Is Roundup weed killer carcinogenic?

There is no consistent evidence showing a relationship between glyphosate and cancer There are a lot of studies on the relationship between glyphosate use and cancer. Some are small and poor; others ...
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  • 54.9k
16 votes
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Does drinking distilled kerosene cure cancer?

tl;dr- No, drinking distilled kerosene doesn't cure cancer as far as any modern research can tell. Some studies have suggested that it might cause cancer in some cases, though the general scientific ...
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  • 4,070
15 votes
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Does getting a flu shot every year help prevent cancer?

The claim is made that having regular influenza vaccinations helps one stay free of cancer. However, a search of PubMed reveals no such study to support the assertion. Could influenza viruses cause ...
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  • 3,394
15 votes

Does synthetic vitamin C contribute to the formation of genotoxins that can lead to cancer?

In a sciencemag.org article, which was apparently about this study, they state that: In the process of destroying free radicals, vitamin C turns into what's called a vitamin C radical. If certain ...
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14 votes

Can dogs detect human cancer?

Dogs 'sniff out prostate cancer with 98% accuracy,' study finds A new study from Italian researchers, presented at the 109th Annual Scientific Meeting of the American Urological Association in ...
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14 votes
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Are organic vegetables higher in carcinogens?

Issue: Whether organic vegetables are comparably more carcinogenic to vegetables treated with pesticides? Evidence: Research shows that numerous chemicals present in natural products tested ...
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  • 22.6k
14 votes

Did just 18 people die from prostate cancer in Japan in 1958?

No! Other sources such as Vegan Bite By Bite (page 210) make clear that the number "18" is the number of autopsy proven deaths from prostate cancer, not the total number. The source of the "18" ...
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  • 99.2k
13 votes
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Do aluminum-based antiperspirants cause cancer?

Research data does not have conclusive evidence linking the use of underarm antiperspirants or deodorants and the subsequent development of breast cancer. Researchers at the National Cancer ...
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  • 22.6k
13 votes

Would eliminating cancer only change the average lifespan by 2.5 years?

The actual number of 3.2 years comes from a US Health and Human Services report examining causes of mortality from a period between 1999-2001, and does not include any additional advances in medicine ...
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  • 21.8k
13 votes

Do 80 to 90 percent of lifelong smokers never develop lung cancer?

It is an oversimplification to assume that even the majority of lifelong smokers 'must' develop lung cancer and die from it. There are other causes of death, and lung cancer is a leading cause among ...
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  • 43.6k
12 votes

Are two thirds of cancer mutations random and unavoidable?

The actual research paper Stem cell divisions, somatic mutations, cancer etiology, and cancer prevention Science 24 Mar 2017: Vol. 355, Issue 6331, pp. 1330-1334 says: It is now widely accepted that ...
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  • 99.2k
10 votes

Has the cure to cancer been hidden by pharmaceutical companies?

If we look at that claim, how does it come that people believe it? Mainstream media frequently runs headlines that make it seem like the cancer cure is found. The fact that those headline exist don't ...
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  • 32.5k
10 votes
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Does the intensity of one's sex life influence the probability of getting cancer?

There have been multiple studies that have shown that frequent ejaculation in men reduces the risk of prostate cancer. Two such studies are cited in this article from the Harvard Medical School: Does ...
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