Which hormone's action is decreased due to prolonged high-intensity exercise?

The action of testosterone can be influenced by prolonged high-intensity exercise due to the body's stress response and hormonal balance. During extended periods of intense physical activity, the body releases stress hormones, including cortisol, which can negatively impact the levels and effectiveness of testosterone.

High-intensity exercise can lead to elevated cortisol levels, and chronically high levels of cortisol can inhibit the secretion and action of testosterone. This suppression may result from the body’s attempt to maintain homeostasis amidst stress, where the prioritization of energy expenditure and recovery can overshadow reproductive hormone regulation. Consequently, while acute bouts of exercise may temporarily increase testosterone levels, prolonged, high-intensity exercise can lead to a decrease in its effectiveness on muscle protein synthesis, libido, and other physiological functions associated with this hormone.

The other hormones, such as estrogen and insulin, have different roles and responses during prolonged high-intensity exercise, and their actions may not decrease in the same manner as testosterone. Understanding these hormonal interactions can help in formulating proper training regimens and recovery strategies to maintain hormonal health.