A student nurse is reading a book on the theories of aging. You know the student understands the programmed aging theory if the student states that: 1. “Stress causes structural and chemical changes...

A student nurse is reading a book on the theories of aging. You know the student understands the programmed aging theory if the student states that:

1. “Stress causes structural and chemical changes in the body, which, in turn, cause aging.”

2. “A genetic clock determines the speed at which people age.”

3. “Changes in collagen are the cause of aging.”

4. “The decreasing ability to produce T-cell differentiation causes aging.”