How to Prevent Decision Fatigue

Decision fatigue is the decline in the quality of decisions an individual makes after a long session of decision-making. It is widely understood as one of the drivers of irrational trade-offs when we choose. For example, research has shown that judges in court deliver lower-quality rulings late in the day than they do at the start. Decision fatigue can also push consumers into poor purchasing choices.

Why Preventing Decision Fatigue Matters

Understanding this concept helps you make positive lifestyle changes so you can conserve mental energy and willpower for the decisions that matter most.

Decision fatigue explains why you start looking for shortcuts in your choices as the day wears on. You may even give up and do nothing when faced with a decision. For example, you might fire off an angry email reply instead of taking the time to craft a thoughtful response.

You might also end up driving through a fast-food restaurant for dinner if you never planned your meals that morning. Or it could be late at night when you make an impulse online purchase that blows past your budget.

This state routinely warps everyone’s judgment. It does not discriminate between executives and non-executives, or between the wealthy and the poor. Although most people never notice it, decision fatigue can leave lasting consequences.

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Consequences of Decision Fatigue

1- Financial impact

You stop handling money well because you cannot weigh all the numbers and risks tied to a purchase that exceeds your budget.

2- Professional impact

If you are an employee, repeated poor decisions can cost you your job. If you are an entrepreneur, a string of bad calls driven by decision fatigue can push your business toward bankruptcy.

3- Social life

Through low motivation and short temper, people may feel you are avoiding or rejecting them. Your social life is a vital part of well-being. Connection and love form part of the human needs, and when you suffer from decision fatigue that need can go unmet.

4- Your health

When you hunt for shortcuts on everything, someone dealing with decision fatigue picks the easiest and most convenient options in the moment. You buy junk food instead of cooking healthy meals, choose the couch or TV over the gym or any exercise, and live on autopilot doing the same things without novelty, which can hurt mental health.

How to Prevent Decision Fatigue

1- Make your most important decisions in the morning

Your mind is clearest in the morning hours because the day’s activities have not yet worn you down. You have not faced a long string of choices yet, so you can pause and think through your situation.

Set aside time while reviewing your top tasks of the day to settle the important decisions already on your calendar. In fact, I recommend that you build a morning routine that includes planning your day as a non-negotiable habit.

2- Do not make important decisions when you are hungry

We have all heard about the risks of grocery shopping while hungry, yet research also suggests we should avoid major decisions on an empty stomach. When you are hungry, your stomach releases a hormone called ghrelin, which harms decision-making.

This appetite-boosting hormone lowers impulse control and raises the odds of a poor choice. In studies with rats, researchers found that, like humans, rodents struggle to resist a quick temptation when ghrelin levels rise.

For that reason, make sure you have eaten enough before deciding, especially later in the day when you are already prone to decision fatigue.

3- Live a more minimalist life

Minimalism is a lifestyle approach that aims to reduce possessions so you keep only the essentials. Life can be lived more fully when fewer small, unnecessary choices pile up, so sticking to the essentials frees mental space for bigger decisions.

Many people apply minimalism to their wardrobes by buying only timeless, necessary pieces that can be mixed and matched. You can also practice it when decorating your home or choosing the car you drive.

Minimalism asks you to identify the most important activities in your life and remove everything that distracts from them. Doing so helps you design a life that adds richness around what truly matters.

4- Delegate decisions

If you run a company or hold a senior executive role, this point is especially useful. You can delegate decisions the same way you delegate tasks. By handing decision-making responsibility to others, you reduce the number of choices on your plate. Look at your responsibilities at home, at work, and elsewhere. Are there obligations you can hand off? That means stopping the urge to micromanage and trusting others to do their part.

Managers can pass certain decisions to employees. Parents can hand some choices to their children. At times we can also delegate to friends and family. It can be as simple as asking a friend to build a playlist for a party or letting the person you are meeting pick the restaurant. Done well, delegation empowers people and shows that you trust them.

5- Take a power nap

A power nap is a short rest of 20 to 30 minutes in the afternoon after your midday meal. Research has found that naps act like a Zamboni for the brain, clearing the mental debris that builds up.

This happens thanks to what researchers call the “cleaning theory.” While we sleep, the brain prunes some connections between neurons, making room for new information we encounter when we wake.

If you feel the effects of decision fatigue, a quick nap can help reset your mental space. You will not return to full capacity, but you will be more likely to make better choices, at least for a while.