Fact 1: Back pain is caused by bad spinal disk.
Fact 2: For some people, back pain does not develop until many years after the bad spinal disk happens.
Fact 3: In this case the back pain would likely materialize by deterioration of some muscles.
(A) Four out of five people over the age of 30 can be sure they will never develop chronic back pain.
We know nothing about who wont'
get back pains.
(B) People who exercise their abdominal and spinal muscles regularly are sure to be free from chronic back pain.
Lack of exercise may help developing back pains but exercising doesn't warrantee no back pain.
(C) Patients rarely suffer even mild and fleeting back pain at the time that a spinal disk first becomes herniated or degenerated.
Some patients doesn't suffer at the time, other patients do.
(D) Doctors can accurately predict which people who do not have chronic back pain will develop it in the future.
Yes, doctors can look at people's spinal disk and see if they are bad.
(E) There is a strategy that can be effective in delaying or preventing the onset of pain from a currently asymptomatic herniated or degenerated spinal disk.
Exercising may help delaying it, but we don't know if it is effective from the passage.
Keep on asking, and it will be given you;
keep on seeking, and you will find;
keep on knocking, and it will be opened to you.