Brain fog makes life miserable by creating a persistent, overwhelming sense of mental exhaustion, confusion, and reduced cognitive function. It makes simple tasks challenging such as where you have kept your mobile, why you entered a room, why you’re feeling hungry, whether you had your lunch etc. It causes frustration, anxiety, and a loss of confidence. The inability to focus or remember often leads to decreased productivity and strained interpersonal relationships, acting as a constant drain on mental energy.

Leading Indian doctors and neurologists describe brain fog as, “not a disease, but a symptom,” reflecting underlying issues like chronic stress, extreme sleep deprivation, poor nutrition, or post-COVID cognitive dysfunction. Experts warn that persistent mental fatigue, deprived concentration, and forgetfulness are now common in young professionals and are often linked to digital overstimulation, nutrient deficiencies, or thyroid problems.

Dr. Nasli Icchaporia highlights chronic sleep deprivation from excessive screen time as a major contributor. Dr. Aditya Aundhakar links it to the gut-brain axis, noting chronic gut inflammation can affect cognitive clarity. It’s become the “Post-Covid” phenomenon. Many specialists, including Dr. Vaibhav Tandon, recognize a sharp rise in post-COVID, long-term cognitive issues causing reduced mental stamina. Studies using advanced PET imaging have identified increased AMPA receptor density, confirming a biological basis for cognitive issues.

Dr Bhojraj, an interventional cardiologist, recounted the case of a woman in her early fifties who came to his clinic feeling exhausted, inflamed and mentally foggy. She was a teacher and a mother, physically active and mindful of her diet. Her blood reports showed no red flags. From a clinical standpoint, everything appeared normal. This is a common picture.

Brain fog, often manifesting as cognitive fatigue, reduced mental clarity, and diminished situational awareness, is a major, often hidden, factor in aviation accidents. It contributes to significant human performance issues, with studies indicating that fatigue and associated cognitive issues play a role in 15-20% of commercial aviation accidents.

Several prominent Indian celebrities have spoken openly about mental health struggles that involve symptoms of brain fog, such as cognitive dysfunction, memory issues, or lack of focus etc. Some famous surgeons have mentioned that while operating at times  they feel the brain fog and it takes a while to come back to realisation. Brain fog leads to a blank mind suddenly. 

Brain fog, characterized by fatigue, poor concentration, and slow cognitive processing, significantly increases road accident risks by impairing a driver’s ability to react to hazards, maintain focus, and judge distance. Caused by factors like sleep loss, stress, or illnesses, this mental state leads to dangerous scenarios such as “highway hypnosis“.

Highway hypnosis is a trance like mental state where a person drives long distances, often on monotonous highways, while operating on “autopilot” with no conscious memory of the past few minutes or miles. While the driver remains engaged in basic tasks like steering, their awareness is reduced, posing significant risks of failing to react to sudden hazards. It happens because of long, straight roads, minimal traffic, and unchanging scenery trigger the state. Brain goes on autopilot mode because of the subconscious mind takes over, like daydreaming while doing a familiar task. Drivers feel sleepy because of the long stretch.

Actress Alia Bhatt who is diagnosed with ADHD, revealed experiencing “zoning out,” difficulty focusing, and mental exhaustion. Deepika Padukone openly speaks about her bouts of brain fog. She described symptoms of feeling empty, directionless, and struggling to focus, which are often linked to mental fatigue.

Why brain fog causes significant misery?

A person may feel dazed, slow-thinking, or as if your mind is clouded, making it hard to process information or hold conversations. It reduces productivity simple, everyday tasks become overwhelming, leading to low work quality, burnout, and anxiety over falling behind. Misplacing items or forgetting daily tasks can be demoralizing and embarrassing.

Brain fog is a, non-medical term used to describe a set of symptoms including confusion, forgetfulness, poor concentration, and mental fatigue. It is not a diagnosis itself, but a symptom of underlying issues like stress, poor sleep, nutritional deficiencies, or illnesses such as COVID-19. Symptoms, which can include feeling “spaced out,” often come and go but can severely hinder daily productivity. Trouble focusing on tasks or maintaining attention.

Chronic lack of sleep, poor nutrition, dehydration, excessive stress, and too much screen time. Long COVID, fibromyalgia, chronic fatigue syndrome, depression, anxiety, migraines, hormonal imbalances (pregnancy/menopause), and nutrient deficiencies like vitamin B12. Over-the-counter antihistamines or other sedative medications can contribute to the sensation

Brain fog can significantly disrupt, your life and interfere with daily functioning, according to studies shared by the National Institutes of Health. Brain fog is often temporary and linked to specific, solvable causes like fatigue. However, it can become chronic and last for weeks, months, or longer if it is tied to conditions like long COVID, chronic fatigue syndrome, or unmanaged chronic illnesses.

Conclusion

Addressing the root cause is key, which may include managing stress, improving sleep quality, ensuring a healthy diet, and consulting a doctor for potential vitamin deficiencies or underlying, health conditions.