Cao Jingyan was diagnosed with Spinal Muscular Atrophy (SMA) at 6 months old. #beauty #china #grandpa #influencers #news Follow us on Instagram, TikTok, and WhatsApp for the latest stories and breaking news. Zhu Yunchang, from Jiangsu, China, gave up retirement to stream late at night on his smartphone to cover the boy's costly medical care. According to South China Morning Post, Cao Jingyan was diagnosed with Spinal Muscular Atrophy (SMA) at 6 months old.