The new generations have a higher risk of cancer

All cancers are increasing in people under 50

More and more people under the age of 50 have been diagnosed with cancer in recent years, warn researchers who have made it a research priority.

It’s an “epidemic of early cancers” that worries the American National Cancer Institute. While cancer affects more people over the age of 50, more and more patients develop cancer before that age. Breast, pancreas, stomach, thyroid… all organs are affected. A study published in the journal Nature Reviews Clinical Oncology believes this increase began in the 1990s.

Researchers at Brigham and Women’s Hospital in the United States analyzed global data describing the worldwide incidence of 14 types of cancer in the population. They then reviewed the scientific literature to determine possible risk factors and biological characteristics of early-stage cancer.

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The identified risk factors

“We observed what is known as the birth cohort effect from our data, which shows that each successive group of those born later has a higher risk of developing cancer later in life, likely due to risk factors they were exposed to at a young age,” Shuji said Ogino, an author of the study, in a statement. For example, those born in 1960 had a higher risk of cancer before the age of 50 than those born in 1950, and this risk increases over generations.

The increasing incidence of early-stage cancer can be explained by changes in diet and especially consumption of processed foods, lifestyle changes such as more widespread sedentary lifestyles, or prolonged exposure to environmental factors (pollution, pesticides, etc.). The researchers do not rule out that screening programs are involved in this phenomenon, but think it is unlikely that this is the main reason for this finding.

Researchers now want to include the youngest in their research. For example, based on the observation that children sleep less than they used to, a lack of sleep could increase the risk of cancer in adulthood.

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