Radium was first discovered by chemist Marie Curie in the Czech spa town of Jáchymov, who named it so because of its radioactive properties.
Curie also developed its use in small grains of gold to treat cancer. The gold filters out the alpha and beta rays, leaving only the gamma rays for the cancer cells, which are thus destroyed faster than healthy cells. In addition, it can precisely target specific areas due to its fast decay rate.
Over time, this form of treatment gave rise to the treatment carried out nowadays in clinics and in spa hotels.
Radon has also been used for centuries to treat various ailments. The use of radon for healing purposes dates back to the ancient Romans, who would bathe in radon-rich mineral springs to relieve joint pain and other ailments. In the early 20th century, radon therapy gained popularity in Europe, particularly in the Czech Republic, where it was used to treat rheumatism, arthritis, and more. Today, radon therapy is still used in many spa hotels and clinics around the world to help alleviate pain and promote overall wellness.