Which of the following is NOT an example of homeostasis?

a
During rigorous exercise the heart rate increases to deliver more blood to the cells.
b
When body temperature rises, nerve impulses cause sweat glands to release more sweat.
c
As humans age, they become more susceptible to disease and cancer.
d
When blood glucose is high, the hormone insulin reduces blood glucose.

c

As humans age, they become more susceptible to disease and cancer.