It is well known that a decrease in immunity increases the risk of cancer development. This course is recommended for individuals whose immunity is thought to be decreased due to stress, insomnia, or the strain of hard work, as well as those who have a family history of cancer and worry about the disease. Counseling is provided based on the test results on the following day in which suggestions to enhance immunity in daily life are made. This counseling is based on five of the six tests performed, as the result cannot be obtained on the following day for the sixth test. The final report, including the result of the sixth test, will be sent to the participant later.