More Than A Third Of All Global Cancer Cases Are Preventable Through Lifestyle Changes, WHO Says
According to a new study and analysis from the World Health Organization (WHO), more than a third of all cancer cases globally are preventable. There are several ways in which we can reduce the odds of many different kinds of cancers developing, and a lot of it has to do with our overall lifestyle habits.
The organization wrote that lung, stomach, and cervical cancers make up nearly half of those cases, meaning that millions of deadly cancers every year could be prevented through medical intervention, behavior changes, reducing occupational risks, and/or combatting environmental pollutants, according to ScienceAlert.
The study itself was published in Nature Medicine.
“Addressing these preventable causes represents one of the most powerful opportunities to reduce the global cancer burden,” says Isabelle Soerjomataram, medical epidemiologist at WHO and senior author of the analysis.
The specific analysis found that in 2022 there were about 19 million new cases of cancer, and about 38% of those diagnoses were related to 30 changeable risk factors.
It was reported that these risk factors include “tobacco smoking, alcohol consumption, high body mass index, insufficient physical activity, smokeless tobacco (like chewing tobacco), a traditional stimulant known as areca nut, suboptimal breastfeeding, air pollution, ultraviolet radiation, infectious agents, and over a dozen occupational exposures.”
Smoking tobacco was the number one preventable factor associated with cancer, and was linked to 15% of all cancer cases in 2022.
For men specifically this risk was particularly high, and smoking contributed to 23% of all new cancer cases globally in men that year.
Air pollution also plays a major role in cancer cases, and varies by region. In East Asia, it was reported that around 15% of all lung cancer cases in women were due to air pollution. In Northern Africa and Western Asia, about 20% of all lung cancer cases in men were also due to air pollution.
Drinking alcohol was the second changeable lifestyle factor that was linked to 3.2% (around 700,000) of all new cancer cases.
Certain infections within the body were also linked to about 10% of new cancer cases. In women, the largest share of preventable cancers were due to high-risk human papillomavirus, or HPV, which has been known to potentially lead to cervical cancer.
“By examining patterns across countries and population groups, we can provide governments and individuals with more specific information to help prevent many cancer cases before they start,” says André Ilbawi, WHO Team Lead for Cancer Control and co-author of the analysis.
Eric Mastrota is a Contributing Editor at The National Digest based in New York. A graduate of SUNY New Paltz, he reports on world news, culture, and lifestyle. You can reach him at eric.mastrota@thenationaldigest.com.










