The form of acupuncture known as Korean Orthodox Saahm Acupuncture, or KOSA, treats patients using less needles inserted at shallower depths while achieving fast and long lasting results. According to KOSA, the methods were invented about 400 years ago by Saahm, a Korean ascetic who, upon his death, took the practice's secrets to his grave. His books were rediscovered in the 1950s, however, and they became the basis of a new school of thought on the medical technique. Today, the acupuncturists at KOSA Acupuncture use Saahm's findings to relieve arthritis, allergies, symptoms caused by cancer, bronchitis, multiple sclerosis, and acute or chronic ailments.