Recently, Hong Yonggang, Deputy Chief Physician of the First Affiliated Hospital of the Naval Medical University, received a banner from local residents as a passenger suddenly fell ill and was rescued by a military doctor. At this point, his deeds of standing up on the high-speed rail to save passengers were only known to his comrades around him. On the evening of March 25th, Hong Yonggang took the G26 train to Beijing for a business trip. Suddenly, the train broadcast broadcasted a distress message: "A passenger in carriage 2 suddenly fell ill and urgently needed medical assistance for treatment." Upon hearing the broadcast, Hong Yonggang immediately got up and rushed to the accident carriage. After arriving at the scene, Hong Yonggang discovered that the patient was a young male who was leaning diagonally in his seat, covering his left chest with his hand. He was breathing rapidly and his expression was very painful. "I'm a doctor, let me help you check." Hong Yonggang quickly stepped forward, comforting the patient while using the equipment provided by the train attendant to quickly monitor their heart rate and blood pressure. Based on the patient's previous medical history information and his rich clinical experience, Hong Yonggang preliminarily determined that the cause of his illness is a cardiogenic disease. Subsequently, with the assistance of train staff, Hong Yonggang made the patient lie down and took out the medicine from the high-speed rail emergency medical kit, allowing it to be contained in his mouth, while continuing to closely monitor his heart rate and blood pressure. After emergency treatment, the patient's condition gradually improved, their originally pale face turned red, and their emotions gradually stabilized. Seeing this situation, Hong Yonggang, who had been nervous and busy all along, finally breathed a sigh of relief. During the subsequent journey, Hong Yonggang still dared not be careless and closely monitored the patient's physical condition. He repeatedly reminded him to go to the hospital for a detailed examination in a timely manner after getting off the car. When bidding farewell, facing the patient's repeated gratitude, Hong Yonggang smiled and said, "As a military doctor, this is what I should do."