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40% of cancer cases can be prevented with just these 3 lifestyle changes: Study

40% of cancer cases can be prevented with just these 3 lifestyle changes: Study

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We all know that smoking and drinking alcohol regularly and being excessively overweight can pose serious health risks. However, new evidence has emerged which proves that 40 per cent of cancer cases can be prevented by cutting out high-risk behaviours and adopting a healthy lifestyle.

According to a study published by the American Cancer Society, smoking, drinking alcohol and being overweight are three leading preventable causes of cancer in adults. The study also encourages public health leaders to educate people about the potential risks of these unhealthy habits.

The study estimated that 40 per cent of the nearly 1.8 million cancer cases in adults aged 30 and older were attributable to "potentially modifiable risk factors" in 2019. It examined 30 types of cancer, excluding non-melanoma skin cancers.

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The study also talks about vaccines for HPV and hepatitis B, which significantly reduce the risk of cancer-causing infections.

Behaviours that increase cancer risk

  • Excessive smoking
  • Exposure to second-hand smoke
  • Drinking alcohol
  • Eating red meat or processed meat too often
  • Not eating enough fruits and vegetables
  • Not getting HPV and hepatitis B vaccines

Lung cancer had the highest number of cases linked to preventable risk factors. The study found that 104,410 lung cancers in men and 97,250 in women could have been prevented. The next most common preventable cancers were 50,570 cases of skin melanoma and 44,310 cases of colorectal cancer.

"Even though smoking rates have dropped a lot in the past few decades, the number of lung cancer deaths caused by smoking in the United States is still very high," said Farad Islami, the American Cancer Society's senior scientific director of cancer disparity research and the study's lead author.

Islami also said that the study highlights the need for strong tobacco control policies in every state to help people quit smoking and for early detection of lung cancer.