What Is Phenology?

Phenology was an idea in scientific circles in the 19th century. It said that different parts of your brain were responsible for different mental functions. Phenologists would feel or measure the bumps on your head, give you a description of your personality based on the bumps and then give you advice about how to best conduct yourself. But modern science regards phenology as a pseudoscience. And neurologists can't determine people's personality traits by reading their heads.