Exercise Prescription Exam 1 Practice

When you don’t move enough, the body’s fat, hormone, and inflammatory environments can tilt toward cancer development in several tissues. The strongest and most consistent links with physical inactivity are for breast, colon, and endometrial cancers.

Breast cancer risk rises partly because higher body fat increases estrogen levels after menopause and promotes inflammatory pathways that can fuel tumor growth. Endometrial cancer is closely tied to obesity and the hormonal milieu created by adipose tissue as well. For colon cancer, limited activity slows gut transit, influences the gut environment, and is tied to obesity and metabolic changes that affect cell growth in the colon.

Other cancers listed don’t show as clear or strong a connection to inactivity; their risk is more strongly influenced by other factors such as smoking, infections, or exposure to specific agents. So the combination of breast, colon, and endometrial cancers best reflects the cancers most consistently associated with physical inactivity.