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How does daily training work?

Denní trénink obsahuje 5 cvičení, která dohromady zaberou přibližně 15 minut – tento čas je ideální pro pravidelnost i viditelné výsledky.

Every completed exercise activates a new part of your neural network.
Once you complete all 5 exercises, the light bulb lights up – a symbol of successfully completed training.
Try to keep the bulb lit as long as possible – every additional day helps your mind stay active and in shape.

The calendar tracks your daily training activity:

  • Blue tile: No training
  • Orange tile: The colour shows training intensity, like the brightness of a light bulb.

    1 exercise = 20% intensity
    5 exercises = 100% intensity

    12345

Regular short training supports neuroplasticity of the brain, improves attention, memory and mental flexibility.

17 July 2026 | 5 minutes read | Pavla Veselá BA. | Disorders and diagnoses

Cleared Up: The Science Behind Brain Fog and How to Reclaim Your Focus

Do you often misplace your keys, lose your train of thought mid-sentence, or find your productivity plummeting? You might be experiencing brain fog. While not a formal medical diagnosis, it describes a very real,…

Cleared Up: The Science Behind Brain Fog and How to Reclaim Your Focus

What is Brain Fog and How Does it Manifest?

Brain fog is a lay term used to describe a cluster of symptoms characterized by a temporary decline in cognitive performance. According to cognitive neuroscience, its primary indicators include:

  • Sluggish information processing (feeling like your brain is running in slow motion).

  • Short-term memory lapses (struggling to find words, forgetting daily tasks).

  • Executive dysfunction (inability to focus, prioritize, or resist distractions).

  • Mental exhaustion that persists even after adequate rest.

Scientific Fact: According to a transdiagnostic narrative review published in PMC (2025), brain fog heavily overlaps with mental fatigue, subjective cognitive decline, and mild but objective deficits in attention and working memory.

The Science Behind the Fog: Root Causes

Recent biomedical research highlights several physiological pathways that trigger cognitive clouding:

  1. Neuroinflammation: A study published in PubMed (PMID: 34714198) demonstrates that low-grade chronic inflammation triggers microglial activation. This disrupts standard synaptic transmission, resulting in the subjective experience of brain fog.

  2. Long COVID: Extensive clinical trials indicate that a significant subpopulation of post-viral patients (around 17%) suffer from long-term brain fog caused by systemic immune dysregulation and persistent vascular inflammation.

  3. Chronic Stress & Sleep Deprivations: Elevated cortisol levels impair prefrontal cortex functioning. Research shows that just 24 hours of sleep deprivation degrades cognitive performance and reaction times to levels comparable to alcohol intoxication.

Overcoming Brain Fog: 4 Evidence-Based Solutions

Pillar Actionable Step Scientific Benefit
Cognition Brain Training (Mentem) Enhances neuroplasticity and strengthens weakened synaptic pathways.
Sleep 7–8 hours of quality sleep Activates the glymphatic system to clear metabolic waste from brain tissue.
Nutrition MIND / Mediterranean Diet Reduces systemic neuroinflammation through high antioxidant and Omega-3 intake.
Exercise 30 mins of aerobic exercise Up-regulates BDNF (Brain-Derived Neurotrophic Factor), vital for neurogenesis.

Why Choose Mentem Brain Training?

When combating brain fog, your brain requires structured, targeted stimulation. Regularly engaging in scientific cognitive games on the Mentem platform helps reactive dormant neural networks. By promoting neuroplasticity, Mentem enables your brain to forge new pathways, ultimately increasing processing speed, memory recall, and resistance to mental fatigue.

 

References:

  1. PubMed (PMID: 34714198): Brain Fog: A Bit of Clarity Regarding Etiology, Prognosis, and Treatment. (Výzkum neurozánětu a mechanismů únavy).

  2. PMC / Biomedical Research (2025): Defining Brain Fog - A Transdiagnostic Narrative Review. (Analýza symptomů napříč diagnózami).

  3. PMC Public Health Concern (2025): Cutting through the fog: recognising brain fog as a significant public health concern. (Dopady na populaci, Long-COVID souvislosti).

  4. European Academy of Neurology (EAN): Klinické studie zaměřené na kognitivní trénink, neuroplasticitu a vliv exekutivních funkcí na kvalitu života.

Article prepared for you by

Pavla Veselá BA.

Pavla Veselá BA.