Question

According to which theory, thymus and brain are the main factors in the aging?

• A. Stress theory
• B. Gene theory
• C. Pacemaker theory
• D. Mutation theory

Answer 1

The correct option is C Pacemaker theory

Aging pacemaker theory suggests that one cell, or one type of tissue, interferes with the cell proliferation, thereby initiating the process of senescence throughout the body. Some suggests the thymus (immunological) and brain (neuroendocrine) as the 'pacemaker' or the 'biologic clock'.
Thus, the correct answer is option (C).