5 Reasons Emotions Are Important

Emotions can play an important role in how you think and behave. The emotions you feel each day can compel you to take action and influence the decisions you make about your life, both large and small.

Emotions can be short-lived, such as a flash of annoyance at a co-worker, or long-lasting, such as enduring sadness over the loss of a relationship. But why exactly do we experience emotions? What role do they serve?

Where Do Emotions Come From?

Emotions are influenced by a network of interconnected structures in the brain that make up what is known as the limbic system. Key structures including the hypothalamus, the hippocampus, the amygdala, and the limbic cortex play a pivotal role in emotions and behavioral responses.

The Three Components of Emotion

In order to truly understand emotions, it is important to understand the three critical components of an emotion. Each element can play a role in the function and purpose of your emotional responses.

  1. Subjective component: How you experience the emotion
  2. Physiological component: How your body reacts to the emotion
  3. Expressive component: How you behave in response to the emotion

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Emotions Can Motivate You to Act

Emotions motivate us
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When faced with a nerve-wracking exam, you might feel a lot of anxiety about whether you will perform well and how the test will impact your final grade. Because of these emotional responses, you might be more likely to study.

Since you experienced a particular emotion, you had the motivation to take action and do something positive to improve your chances of getting a good grade.

You also tend to take certain actions in order to experience positive emotions and minimize the probability of feeling negative emotions. For example, you might seek out social activities or hobbies that provide you with a sense of happiness, contentment, and excitement. On the other hand, you would probably avoid situations that might potentially lead to boredom, sadness, or anxiety.

Emotions increase the likelihood that you will take an action. When you are angry, you are likely to confront the source of your irritation. When you experience fear, you are more likely to flee the threat. When you feel love, you might seek out a partner.

Emotions Help You Avoid Danger

Emotions help us avoid danger
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Naturalist Charles Darwin was one of the earliest researchers to scientifically study emotions. He believed that emotions are adaptations that allow both humans and animals to survive and reproduce.

He suggested that emotional displays could also play an important role in safety and survival. If you encountered a hissing or spitting animal, it would clearly indicate that the creature was angry and defensive, leading to you back off and avoid possible danger.

Emotions can also prepare the body to take action. The amygdala, in particular, is responsible for triggering emotional responses that prepare your body to cope with things like fear and anger.

Sometimes this fear can trigger the body's fight-or-flight response, which leads to a number of physiological responses that prepare the body to either stay and face the danger or flee to safety.

Emotions serve an adaptive role by prompting you to act quickly and take actions that will maximize your chances of survival and success.

Emotions Can Help You Make Decisions

Emotions help us make decisions
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Your emotions have a major influence on the decisions you make, from what you decide to have for breakfast to which candidates you choose to vote for in political elections.

Researchers have also found that people with certain types of brain damage affecting their ability to experience emotions also have a decreased ability to make good decisions.

Even in situations where you believe your decisions are guided purely by logic and rationality, emotions play a key role. Emotional intelligence, or your ability to understand and manage emotions, has been shown to play an important role in decision-making.

Research has found that experiencing fear increases perceptions of risk, feeling disgusted makes people more likely to discard their belongings, and feeling joy or anger causes people to leap into action.

Emotions Help Others Understand You Better

Emotions aid social interaction
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When you interact with other people, it is important to give clues to help them understand how you are feeling. These cues might involve emotional expression through body language, such as various facial expressions connected with the particular emotions you are experiencing.

In other cases, it might involve directly stating how you feel. When you tell friends or family members that you are feeling happy, sad, excited, or frightened, you are giving them important information that they can then use to take action.

Research suggests that people experience positive emotions 2.5 times more frequently than they do negative emotions.

Emotions Allow You to Understand Others

Emotions allow us to understand others
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Just as your own emotions provide valuable information to others, the emotional expressions of those around you also give a wealth of social information. Social communication is an important part of your daily life and relationships, and being able to interpret and react to the emotions of others is essential.

It allows you to respond appropriately and build deeper, more meaningful relationships with your friends, family, and loved ones. It also allows you to communicate effectively in a variety of social situations, from dealing with an irate customer to managing a hot-headed employee.

Understanding the emotional displays of others gives us clear information about how we might need to respond in a particular situation.

Frequently Asked Questions

Which part of the brain processes emotions?

The emotional processing network is the group of brain regions and structures responsible for processing emotions. Parts of the brain involved in this process include the amygdala, the hippocampus, the prefrontal cortex, and the cingulate cortex.

Why are emotions an important part of decision-making?

Emotions can help a decision-maker determine which aspects of a decision are the most relevant to their specific situation. They may also help people make faster decisions.

What is the appraisal theory of emotion?

This theory suggests that emotions step from the cognitive evaluations that people make about specific events. In other words, it implies that people must think about a situation before having an emotional response.

A Word From Verywell

As you have learned, our emotions serve a wide variety of purposes. Emotions can be fleeting, persistent, powerful, complex, and even life-changing. They can motivate us to act in particular ways and give us the tools and resources we need to interact meaningfully in our social worlds.

5 Sources
Verywell Mind uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our editorial process to learn more about how we fact-check and keep our content accurate, reliable, and trustworthy.
  1. Kozlowska K, Walker P, McLean L, Carrive P. Fear and the defense cascade: clinical implications and managementHarv Rev Psychiatry. 2015;23(4):263-287. doi:10.1097/HRP.0000000000000065

  2. Shaver TK, Ozga JE, Zhu B, Anderson KG, Martens KM, Vonder Haar C. Long-term deficits in risky decision-making after traumatic brain injury on a rat analog of the Iowa gambling task. Brain Research. 2019;1704:103-113. doi:10.1016/j.brainres.2018.10.004

  3. Lerner JS, Li Y, Valdesolo P, Kassam KS. Emotion and decision making. Annu Rev Psychol. 2015;66:799-823. doi:10.1146/annurev-psych-010213-115043

  4. Hwang H, Matsumoto D. Functions of emotions. In: Biswas-Diener R, Diener E, eds. Noba Textbook Series: Psychology. DEF Publishers; 2021.

  5. Raschle NM, Tshomba E, Menks WM, Fehlbaum LV, Stadler C. Emotions and the brain – or how to master “the force.” Front Young Minds. 2016;4. doi:10.3389/frym.2016.00016

Additional Reading
  • Damasio AR. Descartes' Error: Emotion, Reason, and the Human Brain. Putnam; 1994.

  • Darwin C. The Expression of Emotions in Man and Animals (3rd edition). Appleton; 1872.

  • Goleman D. Emotional Intelligence. Bantam Books; 1995.

  • Salmond CH, Menon DK, Chatfield DA, Pickard JD, Sahakian BJ. Deficits in decision-making in head injury survivors. J Neurotrauma. 2005;22(6):613-622. doi:10.1089/neu.2005.22.613

By Kendra Cherry
Kendra Cherry, MS, is the author of the "Everything Psychology Book (2nd Edition)" and has written thousands of articles on diverse psychology topics. Kendra holds a Master of Science degree in education from Boise State University with a primary research interest in educational psychology and a Bachelor of Science in psychology from Idaho State University with additional coursework in substance use and case management.