 When something feels different, it could be Alzheimer's. Now is the time to talk. Visit ALZ.org slash Our Stories to learn more. A message from the Alzheimer's Association and the Ad Council. To some, the sound of a baby babbling doesn't mean much, but that's not true. They're testing out vowels and consonants and trying different sounds. And by 12 months, their babbling is beginning to take on meaning.