Gut Microbiome and Dietary Factors
The increase in cancer incidence has also been linked to the modern diet favored in the West. [4] These foods are typically heavily processed and are high in sugar, saturated fats, and refined grains. Not only are heavily processed foods linked to weight gain, though. They have also been directly linked to an increased risk of developing colorectal and breast cancers. Since cancers that affect digestive systems are not linked to obesity, researchers believe gut microbiome changes could be a factor. They suggest that gut microbiomes are heavily impacted by both Western diets and the use of antibiotics.
It’s Not All Bad News
Overall, the study showed a noticeable incidence increase of 17 cancers in Gen X and Millennials. However, it’s not all bad news, as the study also revealed that certain forms of cancer incidence are declining. Women born around 1990 are now less likely to develop cervical cancer. This is because HPV vaccinations were first approved in the U.S. when these girls were turning 16 years old. The drop in smoking rates has also resulted in a decline in esophagus, larynx, and lung cancers. While incidence rates overall have increased in Gen X and millennials, early detection has resulted in a mortality rate decline.
The Bottom Line
Our understanding of cancer and its causes grows every day, along with advances in cancer treatment. However, many health issues we experience in our later years can result from factors that affect us in our youth. The study noted an increase in 17 types of cancer in Gen X and millennials, bringing to question the modern factors that afflict younger generations. Not all hope is lost, though. Despite this overall increase in cancer incidence, certain lifestyle changes have resulted in a decline in some cancers.