1. A computer-implemented method of measuring speech for stress, fatigue and uncertainty, by a user of a computer system, comprising: obtaining biometrics data from a user, using a biometrics system; selecting random text from a database, and providing it to a user to speak said text, such that a user-specific identification is established in conjunction with said biometrics data; providing a questionnaire to said user, to obtain data to establish a user-specific profile, and storing the provided data in said database; providing a preliminary user-specific profile to said user based on said questionnaire; providing targeted speech as a series of randomly selected text strings from said database, to the user, for the user to speak for speech analysis identification and authentication using a speech analysis device, and storing said speech data in said database for analysis; validating said speech data from said speech analysis identification and authentication, with said biometrics data; and confirming said validation to the user.