Isabella's back hurts sometimes after working long hours,mostly while standing.When she gets home,her husband offers to give her a back massage to help relieve her back pain.This always helps Isabella,which can best be explained by

Question

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The gate-control theory suggests that messages from different nerve fibers compete for access to nerve cells in the spinal cord, which act as a "gate" for pain signals to reach the brain. Massaging the back stimulates other nerve fibers, which can compete with the pain signals and help to close the "gate," reducing the perception of pain.

Isabella's Back Hurts Sometimes After Working Long Hours,mostly While Standing