books the effect of using muscle
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# What is smooth muscle?
# How much muscle does it take to build muscle?
# Physical Muscle Methods to build muscle
# muscle tendons
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# muscle relaxants
# acute muscle pain
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Source: wikipedia.org
تأثير استخدام العضلات (Info)
كثرة استخدام عضلات تعابير الوجه في سن متقدمة يعمل على زيادة التجعد، وكذلك ينمو الخط الواصل بين الحاجب وزاوية العين نظرا لكثرة انقباض العضلات في هذه المنطقة.
