Question

why is goitre(Deficiency of iodine) or goiter common in the himalayan region

Answer 1

Goitre is a condition resulting from the deficiency of iodine in the diet. It is characterised by the swelling of the neck region due to the malfunctioning of thyroid glands.
Goitre is common in the Himalayan region because of less intake of iodine with water and diet. This can be rectified by the consumption of iodised salt.