An apparatus for effecting the prospective forewarning diagnosis of sudden brain or heart death or other brain-heart and growth malady in a person, comprising:
- means for measuring the alpha frequency of the brain of a person as a function of the person's pulse rate;
- means receptive of the output of the measuring means and the measured T-3 factor and pulse for the person for calculating the heart and brain weights as a volume.times.specific gravity for the person as a function of the alpha frequency, T-3 factor and pulse;
- and
- means for displaying the calculated values;
- whereby the deviation of the measured T-3 factor from the normal value for the person's age in conjunction with the deviation of the calculated heart and brain weight as volumes.times.specific gravity from the normal values thereof for the person's age is indicative of a prospective forewarning sudden heart or brain death or other brain-heart and growth malady and effects the diagnosis thereof.