Level 1

Student Article

Why Your Brain Avoids Exercise!

By: Dean Burnett
Originally Published in  
Science Focus
A woman jogging while listening to music through headphones
© Getty
Vocabulary

Limit (noun) The point where something stops or can't go any farther.: No definition provided

Effort (noun): Your best attempt to do something, even if it’s hard.

Reward (noun): Something good that you get for doing something.

Ever wondered why it's hard to exercise even though it's good for you?

Built to move, but not in the mood?

Humans are not the fastest or strongest animals. We don't have wings, claws, or armor. But we are great at running long distances. Our bodies are made to exercise for a long time. But even though exercise is good for us, many people don't enjoy it.

Blame your brain (a little)

Our brains are partly to blame. Just because we can do something doesn't mean we want to. Exercise can be uncomfortable because it pushes our bodies to their limits. Our brains don't like wasting effort. They ask, "Is it worth it?" This makes us avoid things that need a lot of work for uncertain rewards.

Maximum chill, minimum effort

We usually like things that give us rewards with little effort. Exercise means changing our routines and comfort zones, which can be hard. Our brains focus more on risks than rewards, making us avoid hard activities.

Your brain as your workout buddy

But our brains can also help us exercise. We can set long-term goals and work toward them. We understand that doing something hard now can make us healthier later. We can imagine a better future and make plans to achieve it.

Meet your motivational "selves"

Our brains have different parts that help us stay motivated. There's the "actual" self (how we are now), the "ideal" self (how we want to be), and the "ought" self (the part that works to become the "ideal" self). This helps us keep going even when exercise is tough.

© Dean Burnett / Our Media