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My family has experienced firsthand the struggles of caring for an Alzheimer's patient. Growing up in a family with three generations, I've always been very close to my grandfather. When I was four years old, my grandfather and I were walking in a park in Japan when he suddenly got lost. It was one of the scariest moments I've ever experienced in my life, and it was also the first instance that informed us that my grandfather had Alzheimer's disease. Over the past 12 years, his condition got worse and worse, and his wandering in particular caused my family a lot of stress. My aunt, his primary caregiver, really struggled to stay awake at night to keep an eye on him, and even then often failed to catch him leaving the bed. I became really concerned about my aunt's well-being as well as my grandfather's safety. I searched extensively for a solution that could help my family's problems, but couldn't find one.