Alzheimer's disease is the most common cause of dementia. In China, the number of people suffering from this disease has reached 10 million, the highest in the world. Early diagnosis of the disease is difficult. It causes great distress and pain to patients and their families. Professor Nancy Ip is an academician at the Chinese Academy of Sciences. Her team has developed a blood test that can make an accurate early diagnosis. It can detect Alzheimer's disease and mild cognitive impairment as early as possible with a high degree of accuracy. Let's listen to her story about the race against Alzheimer's, with her unique take on new quality productive forces.