日本科技探索：機器人與人工智慧對抗阿茲海默症浪潮

Japan is currently facing a serious dementia crisis, with around seven million people suffering from this condition. Dementia causes memory loss and confusion, making it difficult for people to live independently. Last year, more than 18,000 elderly people with dementia wandered away from their homes, and sadly, almost 500 were found dead. The number of these cases has doubled since 2012, showing how much the problem has grown. Japan's population is aging quickly, and there are not enough workers to care for the elderly. The country also has strict rules about foreign workers, which makes it even harder to find enough caregivers. The government has recognized dementia as one of its most urgent challenges. The Health Ministry estimates that by 2030, the cost of health and social care for dementia will reach 14 trillion yen, a huge increase from nine trillion yen in 2025.

To address this crisis, Japan is turning to technology for help. Across the country, GPS-based systems are being used to keep track of people with dementia who might wander off. Some regions offer wearable GPS tags that alert authorities immediately if someone leaves a designated safe area. In certain towns, convenience-store workers receive real-time notifications when someone goes missing, creating a community safety net that can help find people quickly. Technology is also being used to detect dementia earlier. Fujitsu has developed aiGait, an artificial intelligence system that analyzes how people walk and stand. It looks for early signs of dementia, such as shuffling, slow turns, or difficulty standing, and creates outlines for doctors to review during check-ups. Early detection is important because it allows doctors to help people stay active and healthy for longer.

Researchers at Waseda University are working on a humanoid robot called AIREC, which weighs 150 kilograms and is designed to be a caregiver in the future. AIREC can help people put on socks, cook eggs, and fold laundry. The scientists hope that one day, the robot will be able to change diapers and prevent bedsores. Similar robots are already being used in care homes to play music, guide residents in stretching exercises, and monitor patients at night by tracking their sleep. These robots reduce the need for human caregivers to do routine checks. However, experts say that it will take at least five years before robots are smart and precise enough to interact safely with humans. Emotional support is also important, and devices like Poketomo, a small robot that fits in a pocket, are being developed to provide companionship. Poketomo reminds users to take their medicine, gives weather updates, and offers conversation to help ease loneliness. Despite all these technological advances, human connection remains essential. At the Restaurant of Mistaken Orders in Tokyo, people with dementia work as servers, helping them stay engaged and feel purposeful. One server, Mr. Morita, uses flowers to remember orders and enjoys meeting new people. The restaurant shows that while technology can help, meaningful engagement and community support are still vital for people living with dementia.