How Willpower Works: How to Avoid Bad Decisions
hy do we make unhealthy and unproductive choices — even when we know we should do better?
If you ask most people, they will say that poor choices are a result of a “lack of willpower.”
But research from Columbia University is beginning to reveal that willpower doesn't quite work that way.
In fact, you may be surprised just how much small daily decisions impact the willpower you have for important choices. And most importantly, it turns out there are simple choices you can make that will help you master your willpower and make better decisions on a more consistent basis.
Why Some Criminals Don't Get a Fair Hearing
In a research study published by the National Academy of Sciences, psychologists examined the factors that impact whether or not a judge approves a criminal for parole.
The researchers examined 1,112 judicial rulings over a 10-month period. All of the rulings were made by a parole board judge, who was determining whether or not to allow the criminal to be released from prison on parole. (In some cases, the criminal was asking not for a release, but rather for a change in parole terms.)
Now, you might assume that the judges were influenced by factors like the type of crime committed or the particular laws that were broken.
But the researchers found exactly the opposite. The choices made by judges are impacted by all types of things that shouldn't have an effect in the courtroom. Most notably, the time of day.
What the researchers found was that at the beginning of the day, a judge was likely to give a favorable ruling about 65 percent of the time. However, as the morning wore on and the judge became drained from making more and more decisions, the likelihood of a criminal getting a favorable ruling steadily dropped to zero.
After taking a lunch break, however, the judge would return to the courtroom refreshed and the likelihood of a favorable ruling would immediately jump back up to 65 percent. And then, as the hours moved on, the percentage of favorable rulings would fall back down to zero by the end of the day.
This trend held true for more than 1,100 cases. It didn’t matter what the crime was — murder, rape, theft, embezzlement — a criminal was much more likely to get a favorable response if their parole hearing was scheduled in the morning (or immediately after a food break) than if it was scheduled near the end of a long session.
The figure below depicts the odds that a judge will make a favorable ruling based on the time of the day. The dotted lines signify food breaks taken throughout the day.
willpower and decision fatigue
This graph displays the odds that a criminal will receive a favorable response from the judge based on the time of day when the hearing occurs. Notice that as time goes on, the odds of receiving a favorable response decrease. (Graphic by James Clear.)
What's Going on Here?
As it turns out, your willpower is like a muscle. And similar to the muscles in your body, willpower can get fatigued when you use it over and over again. Every time you make a decision, it’s like doing another rep in the gym. And similar to how your muscles get tired at the end of a workout, the strength of your willpower fades as you make more decisions.
Researchers often refer to this phenomenon as decision fatigue. When the judge on a parole board experiences decision fatigue, they deny more parole requests.
This makes sense. When your willpower is fading and your brain is tired of making decisions, it’s easier just to say no and keep everyone locked up than it is to debate whether or not someone is trustworthy enough to leave prison. At the beginning of the day, a judge will give each case a fair shot. But as their energy starts to fade? Deny, deny, deny.
Here’s why this is important for you…
Do You Suffer From Decision Fatigue?
Decision fatigue happens every day in your life as well. If you have a particularly decision-heavy day at work, then you come home feeling drained. You might want to go to the gym and workout, but your brain would rather default to the easy decision: sit on the couch. That’s decision fatigue.
The same thing is true if you find it hard to muster up the willpower to work on your side business at night or to cook a healthy meal for dinner.
And while decision fatigue is something that we all deal with, there are a few ways that you can organize your life and design your day to master your willpower.
5 Ways to Overcome Decision Fatigue and Boost Willpower
1. Plan daily decisions the night before.
There will always be decisions that pop up each day that you can't plan for. That's fine. It's just part of life.
But for most of us, the decisions that drain us are the ones that we make over and over and over again. Wasting precious willpower these decisions — which could be automated or planned in advance — is one reason why many people feel so drained at the end of the day.
For example, decisions like…
What am I going to wear to work? What should I eat for breakfast? Should I go to the dry cleaner before or after work? And so on.
All of those examples above, can be decided in 3 minutes or less the night before, which means you won't be wasting your willpower on those choices the next day. Taking time to plan out, simplify, and design the repeated daily decisions will give you more mental space to make the important choices each day.
. Do the most important thing first.
If there was the most important court case in the world, when would you want the judge to hear it?
Based on the research above, first thing in the morning. You’d want their best attention, energy, and focus to go toward the decisions that were most important.
The same thing goes for your work and life. What’s the most important thing for you right now?
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