Portland man, 74, turns first Boston Marathon into a race to save Alzheimer’s research

Sporting a bright yellow “End Alz” jersey, a white baseball cap and blue-green neck warmer, Ralph Carmona bounced up and down on his wiry legs, warming up for a run on a sunny but brisk morning in Portland. As he ran uphill onto the Eastern Promenade, Casco Bay stretched out to his left, shimmering in the sun. The 6-mile training run was a short jaunt for the 74-year-old Carmona, who qualified for the Boston Marathon for the first time this year and will be one of thousands to run the...