This document discusses the complex interactions of hormones in the body and argues that the oversimplified view of contraceptive hormones only impacting reproduction is flawed. It notes that hormones are synthesized throughout the body, act on multiple receptor types, and influence many physiological systems beyond just the reproductive system, including the brain, mitochondria, immune function and metabolism. The use of synthetic exogenous hormones in contraceptives is presented as an overly simplistic approach that fails to consider the full effects of hormones since they are similar but not identical to endogenous hormones and can impact health in unintended ways.