| http://www.w3.org/ns/prov#value | - Some students describe substantial benefits including self-defense skills, mental and physical health, and improvements in conditions such as asthma, diabetes, rheumatoid arthritis,[1] and blood pressure.[2][3][4][5] Critics, however, accuse the school's founder and instructors of unethical behavior, charging large fees, and pressuring students to commit to long-term contracts.
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