The Duggars keep counting on, but even daughter Jinger Duggar's memory can't always keep up. "I struggle to remember all the names of the grandkids," Jinger, 31, jokingly told her sister Joy-Anna ...

Dr. Dean Buonomano, professor of neurobiology at UCLA, explains why people's names aren't easy to remember. Following is a transcript of the video: The human brain is the most complex device in ...