What, under other circumstances, might sound like poisoning, here is called pampering.
Ojo Caliente (literally, "hot eye") has the only springs in the world containing four minerals―iron and soda being the other two. Each boasts its benefits: Lithium is said to aid digestion and mood, and arsenic helps arthritis, among other maladies.
A spa has operated here for 140 years. For centuries before that, ancestral Tewa Indians lived in P'osi, a pueblo on the mesa above the springs. Some accounts say they considered these waters a gift of the gods. Glowing and relaxed, I'm with them on that.