What role does obesity play in cancer risk?

Obesity is indeed linked to an increased risk of various types of cancer, primarily due to the mechanisms involving chronic inflammation and altered hormone levels.

Excess body fat, particularly around the abdomen, can lead to a state of chronic low-grade inflammation. This persistent inflammation can contribute to the development of cancer by promoting cellular changes that may lead to uncontrolled cell growth. Moreover, obesity affects the levels of several hormones in the body, including insulin and estrogen. Elevated insulin levels can encourage the growth of certain cancers, such as colorectal cancer, while increased estrogen levels, often linked to adipose tissue, are a significant risk factor for cancers like breast and endometrial cancer.

Understanding the biological connections between obesity and cancer can help in establishing preventative measures and appreciating the complex interplay of lifestyle factors in cancer risk.