One thing can strike fear into the heart of the fiercest warrior, the most powerful CEO and the smartest person in any given room: having to speak in public. The thought of it makes the palms sweat, the heart beat faster and the limbs start to shake. An estimated 75% of people have a fear of speaking in public, and it’s something that nearly everyone who takes the TED stage must work hard to overcome.

This TED-Ed lesson, the science of stage fright, just might help. In the lesson — which is taught by educator Mikael Cho and directed by animator Robertino Zambrano of KAPWA Studioworks — looks at stage fright not as an emotion, but as a physiological response. In other words, it’s not so much something to be overcome as to be adapted to.

“Humans are wired to worry about reputation. Public speaking can threaten it,” says…