The process by which the human thymus gradually decays is known as _____.

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The process by which the human thymus gradually decays is known as involution. This is a natural process that occurs with age and results in a decrease in thymic function and output of T cells. Apoptosis and senescence are related to cell death and aging, but not specifically to the thymus. The hygiene hypothesis refers to the idea that reduced exposure to infectious agents in modern society may contribute to the development of autoimmune diseases. Self-tolerance refers to the ability of the immune system to distinguish between self and non-self antigens.

The Process by Which the Human Thymus Gradually Decays Is