Medical warnings regarding Type 1 diabetes in children and water boiling habits

A toddler in Hangzhou, China, has been diagnosed with Type 1 diabetes after exhibiting symptoms of excessive thirst, frequent urination, and a lack of weight gain. Despite the child's grandmother viewing the increased water consumption as a sign of health, the mother sought medical attention at the Linping District Maternal and Child Health Care Hospital. Tests revealed a blood glucose level of 25 mmol/L and an HbA1c of 7.5%. Doctors clarified that Type 1 diabetes is an autoimmune condition where the immune system attacks insulin-producing cells, rather than a result of excessive sugar consumption.

Separately, health experts are warning against improper water boiling practices that may increase long-term health risks. Professor Wu Zhigang from Tongji Medical College noted that repeatedly re-boiling leftover water can lead to the accumulation of nitrites. While not causing acute poisoning, these nitrites can combine with amines from certain foods in the stomach to form nitrosamines, which are classified as Group 2A carcinogens by the International Agency for Research on Cancer (IARC). Additionally, high nitrite levels can oxidize hemoglobin into methemoglobin, potentially reducing the blood's ability to transport oxygen.