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Answer:
Although not fully understood, low back pain problems are usually linked to two areas: 1) lifestyle, which includes stress, lack of exercise and poor posture, and 2) physical injury or disease. Stress can be a precursor to low back pain by upsetting your nervous system, causing your muscles to go into spasm.
Explanation:
yes, this is because you deserve credit for doing service, payment can be a type of credit, hope this helps!
Answer:
b for sure i need to do some more research tho