It's M's doctoral thesis. Elena Sánchez Moral held a few years ago at UNED, directed by María Jesús Pérex Agorreta and Carme Miró, on the mineral-medicinal and thermal waters in 152 different places of our geography. The Latin sentence of the title, where waters, alli health, alludes to the quasi-thermalization of water, thermal or not, but above all thermal in our complex history.