Ototherapy acupuncture ancient books for sale

A correct and modern study found that acupuncture can promote the secretion of endorphins in the brain, and its secretion has analgesic effect, which deepens people's understanding of the biological principle of analgesia, indicating that people have promoted the development of understanding in practice;

B error, truth is conditional and objective;

C wrong, forming a correct understanding and wrong statement that things can benefit society;

D does not meet the meaning of the question, and the main idea of the question does not involve the adjustment of consciousness to human physiological activities;

So the answer is a.