Qianqian, known as China’s “Millennium Baby” for being born precisely at the turn of the millennium, has died suddenly at age 25 from cardiac arrest, her mother confirmed in a social media post.

News of fully vaccinated Qianqian’s sudden and unexpected death quickly became the top trending topic on China’s social media platform Weibo on Tuesday, according to the China News Service.

Qianqian’s mother, a teacher, shared an obituary along with a newspaper photo from her daughter’s birth.

She recounted how, at exactly 11:59 p.m. on Dec. 31, 1999, as people counted down to welcome the new millennium, Qianqian was born, earning her lifelong fame in China and the title “Millennium Baby.”

Her birth marked the beginning of a new era for China, and she was affectionately referred to by the media as “the first girl of China in the 21st century”.

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Her mother chose the name “Qianqian,” inspired by the Chinese word “Qian,” meaning millennium.

Qianqian was a talented artist and musician, writing songs from the age of 12, and working as a professional pianist

Newspaper clippings from Qianqian’s famous birth as the clock struck midnight on January 1st 2000.

According to doctors, sudden cardiac death (SCD) is a natural death caused by cardiac-related problems, such as sudden cardiac arrest or severe arrhythmia.

Yin Yiqi, a first aid instructor with the American Heart Association Heartsaver Program, told the Global Times on Monday that SCD is like a “hidden bomb” capable of claiming lives without any prior warning.

Yin noted that SCD is relatively common and can be triggered by intense physical activity, underlying heart conditions, or side effects of “certain medications.”