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Can’t focus lately? Brain fog may be the hidden culprit behind mental fatigue

Feeling unusually forgetful or mentally drained in your late 20s? It might not be memory loss but brain fog caused by stress, decision fatigue and poor sleep — here’s why it happens and how to clear it.

By NES Web Desk

Mar 01, 2026 14:57 IST

It cannot literally be called 'memory loss' or Alzheimer's. However, due to excessive pressure on the brain, one occasionally becomes confused. Simple, everyday tasks become difficult to perform. Doctors say this is actually a manifestation of 'cognitive overload' or excessive pressure on the brain. In medical terminology, this is called Brain Fog. Currently, this brain fogging has become an epidemic.

Psychologists say that after passing through childhood and adolescence, suddenly many responsibilities come into life at this time. Professional competition, rivalry, along with family responsibilities—life often becomes mechanical with all these. The brain has to work much like a computer. While trying to handle thousands of tasks simultaneously at high speed, the system sometimes starts to hang. That's when problems like brain fog appear.

Why do even simple tasks now feel as heavy as mountains?

'Decision Fatigue'

At the age of 28-30, we usually have to make the most important decisions of our lives. Career, family, investment, even what will be cooked for lunch tomorrow—we have to think about such small matters too. After making thousands of small and big decisions throughout the day, the brain's 'pre-frontal cortex' becomes exhausted. As a result, losing track during meetings or forgetting simple words becomes very normal.

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Micro-stress

Not any major trauma, but rather small worries throughout the day—phone notifications, WhatsApp messages, traffic jams, or tomorrow's deadline—keep secreting cortisol hormone in the body constantly. This hormone blocks your brain's 'clear thinking' or ability to think normally.

Sleep quality vs sleep time

Many people scroll through their phones before going to sleep. This habit actually deteriorates sleep quality. Sleep also comes late. As a result, the sleep cycle is disrupted. If this continues day after day, brain fogging problems are bound to occur.

Some simple ways to clear the 'fog'

Single-tasking: Stop trying to multitask. If you do three tasks simultaneously, the brain cannot process any of them properly.

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Brain Dump: Before sleeping at night, write down all of tomorrow's task list or all the thoughts in your head on a piece of paper. This will make your brain think that the information is safe, so it can rest peacefully at night.

'No-screen' Morning: Don't check your phone immediately after waking up. For the first 30 minutes, look at natural light or spend time with yourself. This will help keep your brain's focus right.

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