Question : Old people have weak immune system. What could be the reaso

1.	Question : Old people have weak immune system. What could be the reason ?
Answer» Solution :Thymus gland is LOCATED on the dorsal side of heart and dorsal aorta. Thymus gland secrete thymosin hormone which PRODUCES leucocytes responsible for IMMUNITY against diseases. In old person, thymus gland degenerates. So thymosin production reduces as a result old pople have weak immunity.

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