(c) When lifting up something heavy, kneel down and hold it close to the knees. Then stand up.

(e) Smoking causes vascular constriction, and leading to disturbed blood flow. Then adversely affects the lumbar muscles.

(b) High-heeled shoes cause a great deal of stress on the lumbar part.

(d) The position of stretching increases the tone of the muscles of the back and causes stress on the lumbar part.

(f) Watch your weight, since obesity causes stress on the lumbar part.