Rafi said smell also increase our appetite. Can you support this statement ? How?

Explanation

1) Yes, I support the statement made by Rafi.
2) when we smell, the air borne substances get dissolved in the watery film of nasal mucus.
3) The chemoreceptors present in the nose trigger signals in the form of nerve impulses to the brain where the smell is detected .
4) Hence we get the feeling of increased appetite .