We are all forgetful sometimes. As people age, they can become more forgetful still. But when remembering information becomes a daily struggle, a person might be suffering from a condition called Alzheimer's disease. Alzheimer's has been called "the thief," because it steals away the person you loved. Knowing someone with this disease can be hard, but there are ways to encourage your loved ones and help them live happily. The lives of millions of...