Chiu Yen-nan points out that mental pressure can affect the nerves and blood vessels and cause muscle contractions. Physical examinations will reveal the causes of bacterial diseases or viruses, but they won't make sense of psychosomatic disorders.
丘彥南指出，壓力會影響神經、肌肉收縮、血管的反應，讓人真的痛起來。然而，病毒、細菌感染引起的生理疾病，經過檢查都找得出病因，心理因素引起的心身症則檢查不出外來致病原因。