There are some things that might help, or are at least worth a try when experiencing brain fog.

1. Meditation – Stress can make the brain release the stress hormone cortisol. It’s job is the temporarily shut down some “unnecessary” functions so your body can focus on the cause of the stress.  But meditation can help by reduces the stress levels, and therefore lowering the cortisol. This can help increase focus and concentration.
2. Exercise – As our brains use 20% of all the energy and oxygen in our blood, raising your heart rate can help your brain by increasing the blood flow. This makes sure your brain gets more of what it needs.
3. Sleep – If we have a lack of sleep it’s our brains that suffer the most. Sleep helps us to consolidate memories from the previous day and therefore aids the learning process. Having a nap will help in the short term, and you should try to ensure you get enough sleep every day.
4. Stay hydrated – we all know that drinking enough fluids is important but still many of us don’t drink enough. Our brains are made up of 75% water so it’s not difficult to imagine how dehydration would cause a problem for the brain. Just 2% dehydration affects your attention, memory and other cognitive skills.
5. Go outside – We get vitamin D from the sun.  It’s estimated 1 billion people around the world are deficient in vitamin D.  As well as helping ease  brain fog, it improves your mood. Therefore it assists depression, improves memory, and increases problem solving ability.

Small changes in your diet might also assist your brain.

1. Omega-3 Essential Fatty Acids – found in fish such as salmon and sardines it’s essential to the brains health and aid memory. But if you can’t eat fish there are Omega-3 supplements that you can easily pick up.
2. Arctic root – A herb used in Chinese medicine to be more resilient to stress, it can help reduce the amount of cortisol released.
3. Citicoline – Available over the counter and increases blood flow to the brain. It is recommended for patients of brain injury and dementia as it  raises levels of acetylcholine, a neurotransmitter which aids memory and learning.
4. Magnesium – Available in many forms , but the best for brain fog is magnesium threonate. It  easily crosses into the brain, where as many others don’t. Don’t go for magnesium sulphate, the kind found in Epsom salts. Fine for soaking your feet but should not be ingested. It has been known to cause brain fog!

Read another common cause for confusion you might experience in Confabulation is not lying. False memories due to brain injury.