Unit 1: Cosmetic surgery; a normal good?

This BBC article says demand for cosmetic surgery is shrinking

http://news.bbc.co.uk/1/hi/england/cambridgeshire/7809614.stm

a) Explain why believe demand for cosmetic surgery is a normal good
b) Based on the artyicle, state 2 things would you expect to be the case if you calculated the income elasticity of demand for cosmetic surgery