China’s most renowned amyotrophic lateral sclerosis (ALS) patient, Cai Lei, has been battling the illness for seven years following his diagnosis. His wife, Duan Rui, has supported him in her own way, also becoming a pillar for other families affected by ALS. After the former vice-president of Chinese e-commerce giant JD.com received his ALS diagnosis in 2019, Cai, now 48, emerged as one of the world’s most determined advocates against the disease, investing over 100 million yuan (US$15 million)...