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Writer's pictureArun Batchu

Book Review - Emotional: The Science Behind How Emotions Drive Our Thinking

Updated: Oct 12


In Emotional: How Feelings Shape Our Thinking, Leonard Mlodinow skillfully navigates the complex, often misunderstood relationship between emotion and reason. Much like the delicate balance of forces that shape our world, Mlodinow demonstrates that our cognitive processes are not coldly rational but deeply intertwined with our emotional states.


The book opens a doorway to understanding how feelings, far from being peripheral, are central to our thinking. Mlodinow doesn't just scratch the surface—he delves into the evolutionary origins of emotions, the science behind affective neuroscience, and their critical role in guiding our decisions. As someone intrigued by both the scientific rigor and the everyday application of such ideas, I found this book a revelation.




What struck me most was the story of the Virgin Galactic rocket ship. Anxiety, as Mlodinow illustrates, can sometimes lead to disastrous decisions—a theme he threads through the narrative with clarity and insight. In the case of the rocket, it was the failures, the malfunctions, that got the spotlight, but as the book points out, it’s often the systems working perfectly behind the scenes that go unnoticed. This mirrors life, doesn't it? We're quick to notice when things go wrong but rarely celebrate the smooth functioning of our emotional "systems" when they help us glide through tough decisions.


One of my favorite sections discusses honeybees and anxiety—a surprising yet captivating comparison. Bees, like humans, experience anxiety in punishing environments. It makes you wonder: if creatures as small as bees exhibit emotional responses, how much deeper is the connection between biology and emotion in humans? This exploration into how emotional states affect not just humans but the animal kingdom at large gave me pause, inviting a broader reflection on our shared emotional landscape.


The most resonant concept for me was Mlodinow’s examination of Barbara Fredrickson’s “broaden and build theory” of positive emotions. Fredrickson posits that positive emotions—joy, curiosity, love—don’t just make us feel good; they actively broaden our cognitive abilities and build long-term resources for personal growth.



In a world where stress and anxiety seem to dominate, this perspective was both refreshing and essential. Mlodinow paints a picture of how happiness isn’t just a state of mind, but a tool for survival, encouraging exploration, creativity, and even longer life expectancy. This resonated with my own experiences, reminding me that our best ideas and boldest decisions often come when we’re in a positive state of mind, not merely avoiding danger.


Mlodinow doesn’t shy away from showing the dark side of emotional imbalance. Sleep deprivation, a common ailment in our fast-paced world, triggers heightened emotional responses. He presents compelling research that shows just how devastating a lack of sleep can be for emotional regulation. A single night of deprivation amplifies negative emotions by up to 60%! It’s a staggering reminder that our bodies and minds are inextricably linked, and neglecting one leads to the suffering of the other.


Perhaps the most profound takeaway from Emotional is the understanding of how emotions are contagious. I’ve long been fascinated by the idea of “emotional contagion,” and Mlodinow explains how happiness, sadness, or anxiety can ripple through communities, affecting not just the individual but entire social networks. In today’s hyper-connected digital age, this concept takes on new meaning. Social media platforms amplify this contagion, spreading emotions faster and further than ever before. It reminded me that, as much as we might think of ourselves as independent thinkers, our emotional landscape is shaped by those around us—family, friends, even strangers online.


Mlodinow’s exploration of emotional intelligence also hit close to home. The ability to recognize, understand, and manage emotions, both in oneself and others, is a skill I believe has become even more critical in today’s world. He ties this idea to real-world applications, showing that emotional intelligence isn’t just a feel-good concept but a vital tool for personal and professional success. Whether it’s in leadership, relationships, or decision-making, those who can navigate their emotional landscape with grace have a distinct advantage.


In conclusion, Emotional: How Feelings Shape Our Thinking isn’t just a book—it’s a guide for living. Mlodinow’s scientific rigor, paired with his accessible writing, makes this a must-read for anyone who wants to understand themselves better. It reminded me that feelings aren’t something to suppress or ignore. They are our body’s way of guiding us, sharpening our thoughts, and helping us navigate the world. It’s a timely reminder that, in a world obsessed with data and logic, emotions are not the enemy of reason but its indispensable partner.


Pick up a copy from your local bookstore or find it at The Thinking Spot. This is one book you’ll want to return to, time and time again.

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