A Chinese woman recently had to have her jaw set back in place by a doctor after she dislocated it by laughing too loudly. I guess laughter really wasn’t the best medicine for her, quite the contrary.

The bizarre incident took place on September 1st, on a high-speed train heading to Guangzhou South Railway Station. Doctor Luo Wensheng, who had boarded the train in Kunming, the capital of south-western Yunnan Province, was commuting to Liwan Hospital – part of Guangzhou Medical University – when he heard an urgent appeal for medical assistance being broadcast through the carriage speakers. He rushed to help and found a female passenger who had her mouth open and was drooling profusely, which indicated that she had suffered a stroke, but he blood pressure was normal. It was only after speaking with eye-witnesses that he learned that the woman had become unable to close her mouth due to laughter.

“She was drooling, so I initially thought she had had a stroke,” Luo Wensheng told Guancha News. “But I took her blood pressure, then asked her some questions, and learned that she had actually dislocated her jaw.”

Unfortunately, Wensheng, who wasn’t an expert in this medical field, was put in the uncomfortable situation of having to fix the poor woman’s face. He told her that he would try to help her, but that there was a high risk that he wouldn’t be able to set her jaw. Still, she wanted him to try.