For the past 10 years, I have volunteered in the US and abroad, but this summer I have made no such plans. Instead, I am embarking on a different journey: an adventure with my grandmother, Mama Eula. Six years ago, my Mama Eula started forgetting things—how many eggs she put in the cake batter, where she had placed her keys, people’s names. The doctors diagnosed her with Alzheimer’s. At first, the disease wasn’t noticeable, but every winter and summer when we visit as a family, the disease has progressed and she is still the same person, but different. Two years …