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26. In old age, people often suffer from stiff and inflamed joints. What is this condition called? What are the possible reasons for these symptoms?
26. In old age, people often suffer from stiff and inflamed joints. What is this condition called? What are the possible reasons for these symptoms?
Biology | CBSE | Class 11 | Locomotion and Movement | NCERT Exemplar
26. In old age, people often suffer from stiff and inflamed joints. What is this condition called? What are the possible reasons for these symptoms?

Solution – rheumatoid arthritis is an auto immune disease in which old age people often suffer from stiff and inflamed joints . The reason for this disease are –

  • Inflammation in synovial joints
  • Genetic factors
  • Smoking
  • Vitamin D deficiency
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