A-Mei's husband often suffered from insomnia at night. Once, A-Mei happened to meet her college classmate who had just returned from studying for a medical doctorate in the United States, and she couldn't help but consult her about her husband's insomnia. Her old classmate straightforwardly asked A-Mei: "Can you grasp your husband's 'sexual' emotions? Can you confirm that his insomnia is not related to your sex life...?" These words made A-Mei fall into deep thought.