Clean air advocate doctor succumbs to lung disease at 29
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Clean air advocate doctor succumbs to lung disease at 29

Dr Krittai Tanasombatkul, the young Chiang Mai doctor suffering lung cancer who showed his fighting spirit with the social hashtag "Su-Di-Wa" (don't give up). He died on Tuesday, aged only 29 years. (Photo: Su-Di-Wa Facebook)
Dr Krittai Tanasombatkul, the young Chiang Mai doctor suffering lung cancer who showed his fighting spirit with the social hashtag "Su-Di-Wa" (don't give up). He died on Tuesday, aged only 29 years. (Photo: Su-Di-Wa Facebook)

A 29-year-old Chiang Mai doctor suffering from lung cancer who showed his fighting spirit using the social media hashtag "Su-Di-Wa" (don't give up) while sharing his experience, died on Tuesday.

He was Dr Krittai Tanasombatkul.

Condolences poured in after his father, Thaiphat, shared the news of his passing on social media on Tuesday morning, along with his picture, the short message "Bon voyage, son" and the doctor's signature hashtag "Su-Di-Wa".

Dr Krittai shared his experience in fighting the disease on social media, and in his best-selling book, Su-Di-Wa.

As the news spread, "Su-Di-Wa" began trending on the X platform, along with renewed calls for the government to come up with a comprehensive plan to combat air pollution.

Dr Krittai studied medicine at Chiang Mai University after completing his Matthayomsuksa education at Suankularb Wittayalai School. While pursuing family medicine, he also took an interest in clinical epidemiology and clinical statistics. 

After completing family medicine, he joined the faculty of medicine at Chiang Mai University and became part of its clinical epidemiology team. He also studied for a master's degree in data science at Chiang Mai University. 

Dr Krittai was diagnosed with lung cancer late last year after developing a bad cough and breathing difficulties, which supporters linked to the severe smog in Chiang Mai. 

The young doctor said he had engaged in regular exercise, had clean eating habits, followed a healthy sleep schedule and had never smoked. 

Early this year, he said he was responding to the treatment well, was able to exercise and was looking forward to going back to teaching. He was drawn towards spirituality and psychology.

His condition deteriorated in October and he married his girlfriend on Oct 22 despite them both knowing he could succumb to the disease at any time. 

The doctor wrote on his Facebook account in early November that he could pass away in mid-December. 

As he posted updates on his condition on social media, he urged the government to endorse long-term plans to end the dust and smoke pollution in Thailand. 

"I might not live long but the girl who walked past me when I had my radiotherapy yesterday should not share the same disease that I have. Those kids should be provided with clean air. They’re not supposed to pay for it," he wrote in March.

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