An aging client asks the nurse what causes aging. What should the nurse explain about the biological clock theory of aging?
1. The decline of the immune system
2. A programmed code in the DNA of each person
3. Damage due to injury
4. Reactive molecules cause damage over time
Answer: 2
1. Immunity theories are based on the knowledge that components of the immune system are affected by aging.
2. Some theories, called the biological clock theories, suggest that aging is a programmed part of DNA or genetics.
3. Damage due to injury is part of the wear and tear theory.
4. Reactive molecules are part of the free-radical theory.
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