Commissioner of Social Security is directed to make findings of fact

The Commissioner of Social Security is directed to make findings of fact, and decisions as to the rights of any individual applying for a payment under this title. Any such decision by the Commissioner of Social Security which involves a determination of disability and which is in whole or in part unfavorable to such individual shall contain a statement of the case, in understandable language, setting forth a discussion of the evidence, and stating the Commissioner’s determination and the reason or reasons upon which it is based.