How can flexibility training reduce the risk of back pain? a. it can improve coordination and prevents falls. b. it can improve the poor posture responsible for back pain. c. it can improve body composition, reducing load on the back d. it can increase endorphin levels that reduce pain.

The right answer is B.

Back pain, when it is of mechanical origin, is treated with relaxation exercises, stretching, bodybuilding of the spine and deep self-massage on the dorso-lumbar muscles to do at least 3 times by week, ideally every day.

Inflammatory back pain is less common (1 in 20 patients). It is the consequence of an underlying autoimmune disease that can worsen over time.

answer; /// i believe that the correct answer is (c) the concentration of active ingredients in a medication

i believe it is the last one. im sorry if im wrong!