Chen we, a high school student in Beijing, had his dinner interrupted when he heard someone screaming from another table. A fellow diner at the restaurant, Zhang Tao, was choking on some steak. He was now holding his throat with his face turning red, while his desperate friends were slapping him on the back.

    1    He got up and ran to Zhang’s table at once. With the help of Zhang’s friends, he was able to help Zhang to his feet. Then, standing behind Zhang, Chen did the Heimlich manoeuvre. The food was instantly forced out, and Zhang began to breathe again. Ten minutes later, an ambulance arrived. The doctors checked Zhang and made sure that he was fine. They suggested he eat more slowly and take smaller bites before they left.

    2    leaving no time for an ambulance to arrive. To solve this problem, in 1974, an American doctor, Henry Heimlich, created the Heimlich manoeuvre, saving thousands of lives around the world. Doing the Heimlich manoeuvre is quick, practical, and easy. It is so easy, in fact, that almost anyone can learn how.

    3    Then, make sure that the victim is really choking. A choking person cannot speak. Slapping the victim’s back will often force out the obstruction. If this does not work, you can perform the Heimlich manoeuvre by standing behind him and wrapping your arms around his waist. Make a fist with one hand and place it in the upper part of his stomach. Grabbing your fist with your other hand tightly, push up and into his stomach in one motion. Continue doing this until the obstruction is forced out.

    4    as you may hurt him. Instead, lay the child face down on your lap with the head lower than the rest of his body, and then give firm slaps to his upper back until he can breathe again.

    5    stand by and do nothing. Luckily, Chen had learnt how to give first aid in school. Seeing Zhang choking, he remained calm and reacted immediately. Chen later said about the incident, “How could I justify sitting there and doing nothing? We are all humans and we all have a responsibility to look after one another’s welfare.”