Answer:
primary and secondary aging
Explanation:
As an individual grows older, one becomes more susceptible to some conditions and illnesses as a result of primary and/or secondary aging.
Primary aging changes arise from biological and genetic factors that are beyond our control. It is the gradual deterioration of the body as one ages, leading to slower movement, problems with vision and hearing, gray hair as a result of loss of melanin, increased susceptibility to infections, etc.These conditions and illnesses caused by aging are inevitable and cannot be controlled.
Secondary aging, on the other hand, are changes which are not naturally caused but are brought about as a result of personal lifestyle changes and poor health practices. Secondary aging changes can be prevented or controlled. Examples of such factors include smoking, sedentary lifestyle etc
