Many effects of exercise on the body emerge gradually. While runners slowly build stamina, their hearts register and react to physical exertion in real time. To satisfy the body’s changing needs and respond to increased stress during exercise, the heart experiences several immediate adaptations at organ, cellular, and subcellular levels. These short term effects help fuel the body during exercise and influence how it functions at rest, leading to lasting cardiovascular benefits.
Explore this explainer article from Drug Discovery News to learn how the heart immediately responds to the demands of exercise by beating faster, pumping harder, adapting to cellular stress, and upregulating energy metabolism.