Nong Chalermwut underwent surgery to treat his congenital heart defect at the age of 20 days. He weighed only 1 kilogram 600 grams. Six weeks after the surgery, he weighed 3.6 kilograms. He is 8 years old and in Grade 2 and studies at Thung Pho School, Krabuek Tia Subdistrict, Noen Kham District, Chai Nat Province.