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Studies indicate that for many, the glomerular filtration rate, a key measure of kidney function, declines after age 40. This process is directly linked to understanding **what happens to glomeruli as a person ages**, emphasizing the importance of proactive senior care to support long-term kidney health.
It is estimated that the average person loses thousands of nephrons each year after age 40, contributing to the question: What part of the kidney shrinks with age? This natural process results in significant changes to the kidney's structure and function over time, even in healthy individuals.
By age 70, the average person may have lost nearly half of their functional nephrons due to natural aging processes. This decline raises an important question for senior health: **do you lose glomeruli as you age**? The answer is a clear yes, and this article will detail the physiological reasons why.
