We may be able to reverse signs of early Alzheimer's disease

Story highlights

  • Alzheimer's disease affects as many as 5 million Americans
  • In new study, 9 of 10 participants reversed some of their dementia symptoms
  • Eating clean, sleeping at least 8 hours and fasting strategically may help
A music legend fights Alzheimer's disease on his unforgettable farewell tour. CNN Films Presents: "Glen Campbell ... I'll Be Me," Sunday, June 28 at 9 p.m. ET.

(CNN)The woman at the department store bounded toward Julie Gee.

"Julie! Hi! How have you been?" she asked. Gee, 49, stared blankly at her. A few uncomfortable seconds passed.