Perhaps a cure for Covid...?
We have to learn to eat the extracts!
Jérôme,There is no a priori reason why spicy food would have health benefits. Chilies in particular have evolved their active principle, capsaicin, as a mean for their fruits to be eaten by birds. Birds are not sensitive to the effects of capsaicin. The original chili plants grow their fruits birds to be easier eaten by birds.
As to the reasons why capsaicin elicits a response similar to burn in our taste buds, one may find the following article interesting: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5326624/
Wow, Jerome, I love this image! so gorgeous all the bright colors against the grayish wood slats!