Writer/advocate Nancy Nelson, 74, works on a poem in her office in Las Vegas. Nelson was diagnosed with early-onset Alzheimer’s disease in 2013 and attributes much of her continuing health to diet …

Writer/advocate Nancy Nelson, 74, works on a poem in her office in Las Vegas. Nelson was diagnosed with early-onset Alzheimer’s disease in 2013 and attributes much of her continuing health to diet, exercise and a positive attitude. (Benjamin Hager/Las Vegas Review-Journal) @benjaminhphoto