What led to the myth that humans use only 10 percent of our brains?

Question

Quizplus · Accepted Answer

This myth likely originated from misunderstandings about how the brain works. Scientists discovered that some areas of the brain appeared less active during certain tasks, leading to the assumption that those areas were dormant and therefore not being used. However, later research demonstrated that those areas were actually active in other ways, such as supporting other cognitive processes. There is no evidence to support the claim that humans use only 10 percent of their brains.

What Led to the Myth That Humans Use Only 10