TESTING OF A PERSON'S BIOLOGICAL AGE AND THEIR ACTUAL RATE OF AGING, NAMELY, USING SIMPLE PHYSICAL TESTS, AND USING LABORATORY TESTS, THEREBY DISTINGUISHING THEIR BIOLOGICAL AGE FROM THEIR CHRONOLOGICAL AGE IN YEARS. THE 'SIMPLE PHYSICAL TESTS' MAY BE ADMINISTERED BY MEANS OF ELECTRONIC LITERATURE VIA A GLOBAL COMPUTER NETWORK, BY PRINTED LITERATURE, OR VERBALLY BY MEANS OF THE TELEPHONE, BY AUDIO TAPE, OR IN PERSON. OFFERING HEALTH ADVICE AND RECOMMENDATIONS TO CHANGE ONE'S RATE OF AGING. OFFERING WORKSHOPS, CLASSES AND SEMINARS IN THE FIELD OF ANTI-AGING MEDICINE, PROVIDING INFORMATION AND ELECTRONIC LITERATURE ON A WIDE VARIETY OF TOPICS OF PUBLIC INTEREST VIA A GLOBAL COMPUTER NETWORK, NAMELY, INFORMATION AND ELECTRONIC LITERATURE ON LONGEVITY AND ANTI-AGING, BRAIN NUTRITION, BRAIN LONGEVITY, STRESS-REDUCTION. AND NEUROLOGICAL HEALTH CARE