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Mental Fatigue: Causes, Symptoms and How to Relieve It

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Last updated: 4/16/2026

/ Published: 4/16/2026

Mental fatigue: causes, symptoms and how to effectively remedy it

The pace of modern life, marked by stress, long working days and constant exposure to screens, means that more and more people are experiencing mental fatigue. This type of tiredness affects not only cognitive performance, but also emotional and physical wellbeing. In this article, we help you recognise the symptoms of mental fatigue and understand how to fight it so that you can regain your energy and concentration. Keep reading!

What is mental fatigue?

Mental fatigue is a state of exhaustion that mainly affects our cognitive abilities, such as attention, memory and decision-making. Unlike physical tiredness, this type of fatigue is not always solved by sleeping, as it is often linked to emotional, psychological and lifestyle factors.

During periods of high pressure, such as exam periods or peaks at work, this problem becomes more intense, leading to genuine mental exhaustion.

Causes of mental exhaustion

The causes of mental exhaustion can be varied, with the most common including:

  • Prolonged stress: constant pressure at work or in personal life can overload the brain.
  • Lack of proper rest: poor sleep or not getting enough sleep directly affects mental recovery.
  • Task overload: too many responsibilities without enough breaks contribute to cognitive wear and tear.
  • Excessive screen use: continuous exposure to electronic devices reduces the ability to concentrate.
  • Poor diet: a diet lacking essential nutrients affects the way the brain functions.
  • Lack of disconnection: not setting aside time for leisure or mental rest prevents recovery.

Symptoms of mental fatigue: warning signs

Recognising the symptoms of fatigue is essential in order to act in time. Some of the most common include:

  • Difficulty concentrating
  • A constant feeling of tiredness, even after resting
  • Lack of motivation
  • Memory problems
  • Irritability or mood changes
  • Frequent headaches
  • Reduced work or academic performance

These symptoms of mental fatigue can appear gradually and, if not addressed, may significantly affect quality of life.

How to relieve mental exhaustion

Fortunately, there are different strategies to combat mental fatigue and tiredness and restore balance:

1. Improve sleep quality: sleeping between 7 and 8 hours a day is essential. Keeping a regular sleep routine helps the brain recover.

2. Organise your tasks: planning your day and prioritising activities prevents overload and reduces stress.

3. Take active breaks: taking short breaks during the day improves concentration and helps prevent exhaustion.

4. Do physical exercise: sport releases endorphins and improves oxygenation to the brain, helping reduce mental fatigue.

5. Look after your diet: eating foods rich in B vitamins, magnesium and omega-3 supports cognitive performance.

6. Switch off from technology: reducing screen time, especially before bed, improves the quality of rest.

What can you take for mental fatigue during periods of intense effort or work?

At times of high demand, many people wonder what to take for mental fatigue during periods of intense effort or work. Alongside maintaining healthy habits, food supplements can be a great ally.

Our recommendation? Multicentrum Mental Energy; a supplement specifically formulated to support cognitive performance.

This supplement combines B vitamins, iron and other key nutrients that contribute to reducing tiredness and fatigue, while also helping improve concentration and mental clarity.

Its use can be especially useful during periods of intense stress, helping to maintain the mental energy and focus needed to face daily tasks.

Another supplement we recommend is Arkopharma Arkoreal Royal Jelly with Vitamins, thanks to its formula based on fresh royal jelly enriched with essential vitamins that help strengthen the body during periods of physical and mental tiredness.

This Arkopharma supplement is designed to provide energy, support natural defences and improve daily vitality, making it an ideal option during periods of stress, seasonal changes or increased wear and tear.

Mental fatigue is an increasingly common problem that can affect both performance and overall wellbeing. Identifying the causes of mental exhaustion, recognising the symptoms of fatigue and applying effective solutions is essential to prevent burnout.

Adopting healthy habits, resting properly and, when necessary, relying on supplements such as Multicentrum Mental Energy, can make a real difference when it comes to recovering vitality and facing everyday life with more energy and clarity.

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Nutrition and Dietetics
License Number: 7700
Julia Mendoza Murillo