What is a normal physiologic process of aging that results in arteries that are less elastic and pliable?

The normal physiologic process of aging that leads to arteries becoming less elastic and pliable is arteriosclerosis. Arteriosclerosis is characterized by the thickening and hardening of arterial walls, which is largely a result of age-related changes in the vascular system. As individuals age, the smooth muscle cells in the arterial walls and the collagen fibers become stiffer, reducing the elasticity that is essential for healthy blood flow and blood pressure regulation.

This decrease in elasticity can contribute to increased resistance in the arteries, thus elevating blood pressure and potentially leading to other cardiovascular issues. While atherosclerosis involves the buildup of plaques in the arteries and can occur due to various factors including diet and lifestyle, arteriosclerosis is a more general term that refers to the natural hardening of the arteries with age, independent of specific lifestyle choices. Thus, it is important to distinguish between these two conditions, as they have different underlying mechanisms and implications for health.