On her birthday, we remember Ruby Keeler...

… and her life-long struggle with Cathedra-Caudexia, a condition that often goes undiagnosed even today. As a result, she was literally unable to fully comprehend how to use chairs, stools, or benches.

For reasons that are poorly understood, this ailment often afflicts those with a talent for activiities that involve music, such as singing, dancing, or playing instruments. Another famous sufferer of Cathedra-Caudexia was Ann Miller.