Struggling with brain fog? Here is how to fix it
By Cynthia Lodite, July 27, 2026Have you ever walked into a room and forgotten why you were there, struggled to focus on a simple task, or found it difficult to remember information you just learned?
These experiences are often described as ‘brain fog’, a term used to describe a feeling of mental sluggishness, poor concentration, and forgetfulness.
Brain fog is not a medical condition itself but rather a symptom that can be linked to lifestyle habits, stress, poor sleep, certain health conditions, or even dehydration. The good news is that in many cases, simple changes to your daily routine can help improve mental clarity.
Prioritize quality sleep
Sleep plays a vital role in brain function. During sleep, your brain processes memories, clears waste products, and prepares for the next day. Consistently getting too little sleep can leave you feeling mentally exhausted.
Most adults should aim for 7–9 hours of quality sleep each night. Maintaining a regular bedtime, reducing screen time before bed, and creating a comfortable sleep environment can help improve sleep quality.
Stay hydrated
Even mild dehydration can affect concentration, mood, and memory. If you’re feeling unusually tired or unable to focus, it may be worth checking whether you’re drinking enough fluids throughout the day.
Water is the best choice, and eating water-rich fruits and vegetables can also contribute to your daily fluid intake.
Eat a balanced diet
Your brain depends on a steady supply of nutrients to function well. Meals rich in whole grains, fruits, vegetables, lean proteins, healthy fats, and foods containing omega-3 fatty acids support brain health.
Try to limit highly processed foods, sugary snacks, and excessive alcohol, as these may contribute to energy crashes and reduced concentration in some people.
Manage stress
Chronic stress can make it harder to concentrate and remember information. When stress hormones remain elevated for long periods, they can interfere with normal brain function.
Activities such as deep breathing, meditation, prayer, spending time in nature, listening to music, or talking with someone you trust can help reduce stress levels.
Be kind to yourself
When life gets busy and stress levels rise, it’s not uncommon to find yourself walking into a room and forgetting why you went there, losing your train of thought mid-sentence or struggling to stay focused on simple tasks.
Especially after the weekend, it can be hard to get back into work or study mode.
This mental cloudiness is often called ‘brain fog’, and while it isn’t a medical condition in itself, it refers to a collection of cognitive symptoms such as difficulty concentrating, forgetfulness, and mental slowness.
Common causes of it can include menopause or perimenopause and conditions such as long Covid and autoimmune conditions like lupus disease, but it can also strike when you’ve got too much on your mind at once.