Cell memory theory is a popular theory now. According to this theory, cells that donate organs will remember and recall the instructions previously executed by the body. Based on the hypothesis of linear and inverse linear differentiation of CD8+T memory cells, mathematical models were established to study the dynamics of various T cell subtypes. It is found that under the condition of optimizing the antigen invasion dose, both models can produce memory and simulate the experimental results well. Through further simulation, it is found that CD8+T cell memory is closely related to the existence of antigen, which once again confirms the role of antigen in maintaining T cell memory. In addition, the life of the memory cell is also discussed. It is considered that the inverse linear hypothesis has stronger reactivity and memory. This shows that patients may inherit some related characteristics after transplanting other organs.

Gary Schwartz, a psychologist at the University of Arizona in the United States, called the changes after organ transplantation "cell memory". His theory is that because cells contain a complete set of human genetic "materials", patients who receive organ transplants will "inherit" some genes from organ donors, which is similar to the cellular conditioned reflex that forms memories. Many events have proved that there may be memory phenomena in cells. Some of these genes determine people's way of thinking, behavior and even taste preference. But this idea can't be proved in clinic. He claims that his research has proved that at least 10% of patients with major organ transplants (including heart, lung, kidney and liver transplants) will "inherit" the personality and hobbies of organ donors to some extent, and some even inherit the wisdom and "talent" of organ donors. Although they are skeptical about the statement that the patient "inherited the memory of the donor", other experts still cautiously believe that there is no evidence to completely deny this statement: after the heart is transferred to another person, some memories of personality and hobbies stored in the heart are also transferred to another person. Some experts in Australia believe that the brain is not the only organ with memory function, and the heart can also store memories. An Australian man who received a heart transplant greatly changed his eating habits and became fond of hamburgers and French fries. It is said that the original owner of this heart is a boy of 18 years old. He used to love hamburgers and French fries. According to the statistics of scientists, at least 70 organ transplant recipients have become similar in personality to organ donors after the operation. Gary Schwartz, a famous professor of psychology at the University of Arizona in the United States, believes that all major organs of the human body have some kind of "cell memory" function after more than 20 years of investigation and research.