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Do Older People Have Lower Lymphocytes? Exploring Immunosenescence and Its Effects

According to a study published in *Immunity & Ageing*, the number of B cells and naïve B cells decreases with age. The broader process of immunosenescence, or the aging of the immune system, commonly causes older people to have lower lymphocytes and a shift in the composition of their immune cells. This decline is a key factor in the reduced immune function and increased vulnerability to infections observed in the elderly.