Dr. Daniel Gibbs, a 74-year-old physician who diagnosed himself with Alzheimer’s, shared his experience and insights with the Daily Mail. Loss of smell at 55 was his first clue. He emphasizes lifestyle changes like exercise and diet, claiming they’ve reduced the disease’s impact by 20%. Dr. Daniel Gibbs, a 74-year-old physician who diagnosed himself with Alzheimer’s, shared his experience and insights with the Daily Mail. Loss of smell at 55 was his first clue. He emphasizes lifestyle changes like exercise and diet, claiming they’ve reduced the disease’s impact by 20%. Health and Fitness, Health Tips, Exercises & Workout Tips, Diet & Wellness | Times of India Lifestyle