10 Characteristics of the Left Brain: Functions You Need to Know

The human brain is a fascinating and complex structure that controls every aspect of our lives, from creating thoughts and memories to regulating our bodily functions. Our brain is divided into two parts, the left and right hemisphere, and each side performs different functions.

In this article, we will focus on the left hemisphere function psychology and explore the 10 characteristics of the left brain. We will discuss the functions of the left brain, what emotions it controls, and famous left brain thinkers.

What are the Functions of the Left Brain?

The left hemisphere of the brain is responsible for analyzing information and performing logical tasks, such as language, math, and reasoning. Let’s take a closer look at the functions of the left brain.

1. Language

The left brain is responsible for speech production and language comprehension. It controls our ability to understand and use language, including grammar and syntax.

2. Math

The left brain is also responsible for mathematical reasoning and problem-solving. This includes performing calculations, analyzing numerical data, and making deductions based on logical principles.

3. Logic

The left brain relies on logic and reason to understand the world around us. It is responsible for analyzing information, identifying patterns, and making connections between different pieces of information.

4. Analysis

The left brain is analytical in nature, with a focus on quantitative thinking and logical reasoning. It is responsible for breaking down complex ideas into smaller parts to better understand them.

5. Reasoning

The left brain is responsible for making rational decisions based on facts and data. It weighs the pros and cons of different outcomes and makes choices based on logical reasoning.

6. Sequencing

The left brain is responsible for organizing information in a logical sequence. It helps us understand the order in which things happen and allows us to remember information in a structured way.

7. List-Making

The left brain loves to make lists! It is responsible for creating to-do lists, grocery lists, and any other type of list that helps us stay organized and focused.

8. Analysis of Details

The left brain has a sharp eye for detail and excels at analyzing information. It is responsible for examining the minute aspects of complex problems and breaking them down into smaller, more manageable components.

9. Reading

The left brain is responsible for reading and interpreting written language. It is needed to comprehend written text, including letters, words, and sentences.

10. Writing

The left brain is responsible for facilitating the process of writing. It focuses on grammar, syntax, and spelling, enabling us to convey our ideas through writing.

Left Brain Versus Right Brain: What’s the Difference?

The left brain is often referred to as the “logical brain” or the “analytical brain,” while the right brain is referred to as the “creative brain” or the “emotional brain.” While the left brain is responsible for logic and reason, the right brain is responsible for creativity, intuition, and emotions.

Both sides of the brain work together to help us think, understand, and make decisions. What is called when you use both sides of your brain is “whole brain thinking,” which is the blending of both hemispheres in order to improve creativity, innovation and thinking skills.

What Emotions Does the Left Side of the Brain Control?

Contrary to popular belief, the left brain does control certain emotions. Studies have shown that the left brain is associated with positive emotions like happiness, joy, and excitement. It also plays a role in inhibiting negative emotions like fear and sadness.

What Emotions Does the Right Side of the Brain Control?

The right brain, on the other hand, is primarily responsible for processing negative emotions like fear, sadness, and anger. It’s also responsible for processing nonverbal emotional expressions and interpreting social cues.

Famous Left Brain Thinkers

Throughout history, there have been many famous left brain thinkers who have made significant contributions to society. Some examples include:

  • Albert Einstein – theoretical physicist
  • Stephen Hawking – cosmologist and theoretical physicist
  • Marie Curie – chemist and physicist
  • Bill Gates – entrepreneur and computer scientist
  • Charles Darwin – biologist and naturalist

Left Brain Weakness Characteristics

While the left brain is responsible for performing several critical functions in our daily lives, it can also have its weaknesses. These can include tendencies towards perfectionism and over-analysis, difficulty in processing abstract or symbolic concepts, and an overall tendency to get stuck in routine and detail-oriented tasks.


The left brain is a crucial part of our brain and controls many of the functions that are fundamental to our daily lives. This includes language, math, logic, analysis, reasoning, and much more. While it has some weaknesses, it is responsible for many of the things that make us successful and productive.

Now that you have a better understanding of left hemisphere function psychology and the 10 characteristics of the left brain, you can focus on ways to strengthen these functions and make the most of your analytical capabilities.