Several theorists have tried to understand why people age. Various error theories have been developed in this regard. According to the wear and tear theory of ageing, people age because:

Question

our cells, tissues, and organs become damaged through being over-used.
body tissues become less flexible and functional over time.
our cells can only divide a maximum number of times.
free radicals attack cell membranes, causing cellular damage.
None of the above.

Answer 1

According to the wear and tear theory of aging, people age because our cells, tissues, and organs become damaged through being over-used. This theory posits that the cumulative effects of physical stress and damage to cells and tissues over time contribute to the aging process.