Microsleep: The hidden threat that can cost you your life

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Jan , 22. 12. 2025

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Microsleep is a dangerous phenomenon that many of us underestimate. It takes only a few seconds of inattention for us to lose control of the steering wheel or make a dangerous mistake at work. This brief moment of unconsciousness can have tragic consequences. What is microsleep, how to recognize it, and most importantly – how to avoid it? In this article you will learn everything you need to know about this phenomenon.

1. What is microsleep?

Microsleep is a short-term and unconscious nodding off that lasts from a few milliseconds to several seconds. Most of the time a person does not even realize they were asleep because they wake up almost immediately. This state occurs when the brain is so tired that it cannot maintain alertness, even when a person is trying to stay awake.

Microsleep often occurs in situations where a monotonous activity is combined with fatigue, such as when driving long distances, working at night, or watching television.

2. What are the symptoms of microsleep?

Recognizing that microsleep is approaching is not always easy, because it comes without warning. However, there are certain signals that may indicate you are at risk:

  • Frequent yawning and a feeling of heavy eyelids
  • Eyes wandering and difficulty focusing
  • Unclear thinking and loss of concentration
  • Forgetting the last few minutes – “blank” moments

If you notice these warning signs, it’s high time to stop and take a break, before an accident occurs.

3. What are the most common causes of microsleep?

Microsleep is usually caused by a combination of fatigue and monotonous activity that does not require full concentration. The main factors include:

  • Sleep deprivation: Regularly shortening sleep time causes chronic fatigue, which increases the risk of microsleep.
  • Shift work: People who work at night or have irregular schedules are more prone to microsleep.
  • Monotonous activities: Long drives, watching TV, or working on a computer in a quiet environment can contribute to microsleep.
  • Sleep disorders: People suffering from insomnia, sleep apnea, or other sleep disorders are more likely to experience microsleep.

4. How dangerous can microsleep be?

Microsleep is especially dangerous behind the wheel. It takes just a few seconds of losing control over the vehicle for a tragedy to occur. For example, if microsleep happens at a speed of 100 km/h, in two seconds you will travel almost 56 meters without realizing what is happening around you. This can lead to an accident with fatal consequences.

Statistics show that microsleep is a frequent cause of serious traffic accidents, especially at night or in the early morning hours when the body is naturally tired.

5. How to prevent microsleep?

There are several ways to protect yourself from microsleep and minimize the risk of dangerous situations. Prevention is key, so it is important to follow these guidelines:

  • Adequate sleep: Make sure you sleep at least 7–8 hours a day. Quality sleep is the best prevention against fatigue.
  • Regular breaks while driving: If you are traveling long distances, take breaks every two hours. A short pause during which you walk and stretch is enough.
  • Caffeine and refreshment: Coffee or energy drinks can help increase alertness, but they are not a long-term solution. Also opening a window or loud music can help short-term, but are not a substitute for rest.
  • Do not underestimate fatigue: As soon as you feel symptoms of fatigue, stop the activity that tires you and allow yourself to rest. Stop the car if you are driving, and take a short nap before continuing.

6. What to do if you experience microsleep?

If you experience microsleep, it is important to immediately reassess your plan. If you are behind the wheel, find a safe place to stop and allow yourself to rest. Do not try to fight off the fatigue, because you risk not only your life but also the lives of others on the road.

Also remember to regularly check your sleep habits. If you have sleep problems, consult a specialist, who can help identify the causes and suggest solutions.

Conclusion

Microsleep is an invisible enemy that can surprise us unexpectedly and cause serious consequences. It is important to be aware of the risks associated with fatigue and take preventive measures, to avoid such situations. Caring for quality sleep and alertness can save lives – yours and others’.