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Who's in the Video
Robert M. Sapolsky holds degrees from Harvard and Rockefeller Universities and is currently a Professor of Biology and Neurology at Stanford University and a Research Associate with the Institute of[…]
In Partnership With
John Templeton Foundation
You’ve heard about your “lizard brain.” But what about the other two?
8 min
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The brain consists of three layers: the reptilian brain, the limbic system, and the cerebral cortex. The reptilian brain controls bodily functions like hormones, body temperature, and hunger. The limbic system handles emotions such as fear, anger, joy, and gratitude. The cerebral cortex is responsible for impulse control, decision making, and long-term planning.

Understanding the functions of each part of the brain allows for more mindful thoughts and better decision-making. For instance, recalling a favorite memory or something that brings happiness can activate the reptilian brain, resulting in a decrease in body temperature and blood pressure. This can reduce stress and promote a more joyful experience throughout the day.

In this video, neurologist Robert Sapolsky explores these concepts in greater depth.


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