Why does the ESR rate raise with age?

The erythrocyte sedimentation rate (ESR) tends to increase with age due to several factors, including the natural aging process, which often leads to chronic inflammation and changes in immune function. As people age, there is also an increase in the production of proteins like fibrinogen that promote sedimentation. Additionally, age-related changes in blood composition and the presence of comorbidities can further elevate ESR levels. Consequently, the ESR can serve as a non-specific marker of inflammation that often increases in older adults.