Centuries ago, European monks noticed something interesting: when they treated respiratory ailments in natural salt caverns, their patients got better faster. The monks produced salt dust by grinding salt rocks against each other, which the patients then inhaled. Dr. Felix Bochkowsky, the state authority for occupational health in Polish industry in the 1840s, saw the same thing was true with miners: while metal and coal miners battled relentless, deadly respiratory ailments, workers in salt mines were healthier than average people, let alone other miners. In 1843, Dr. Bochkowsky published a book about the health benefits of salt dust. His successor, Mstislav Poljakowski, followed by establishing the first salt clinic near Krakow, Poland, which is still in operation today. By the 1950s, scientific studies (primarily in the USSR) were proving how effective salt therapy is in treating respiratory ailments. By recreating the natural micro-climate of the salt mines above-ground Saltrooms provided a controlled environment, and Halotherapy (from “halo”, Greek for salt) became a new option for respiratory treatment.