When Thai was 20 years old, he suffered from an intense fever that left serious after-effects on his body, one of them being an unusual inability to sleep. The farmer has revealed that he has tried various medicines, home remedies, and the most varied techniques and tricks, but to no avail. Although in his youth he believed that his insomnia would be temporary, the condition has persisted for six decades. In his home country, Thai Ngoc is considered a unique miracle. However, according to some medical sources, there is a possibility that the octogenarian is sleeping in small amounts without being aware of it.