2)What's the spice-input ⇔ hormone-ouput system function? 3)CHN spice consumption/capita is about one 10th that of india 4)Even if spice consumption/cap is higher in Hunan+Sichuan, obviously it's not at indian level even if rest of chinese consume nil/little spice.

https://www.helgilibrary.com/charts/which-country-eats-the-most-spice/

Which Country Eats the Most Spice?

Spice Consumption (Total) (kt), 2020 or latest