What are the Causes of Brain Fog?

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  • Written By: Anna T.
  • Edited By: Melissa Wiley
  • Last Modified Date: 11 February 2019
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Brain fog can be caused by many different things, including hormone imbalances, vitamin deficiencies, and depression. Many people are also more likely to experience brain fog if they are under a great deal of stress or haven't been getting enough sleep at night. This is often thought to be a problem that only elderly people have, but it can happen to anyone. The cause is usually related to a problem that is easily fixable, such as getting more sleep or taking the right vitamins, but it can also be an indicator that something else is wrong.

Many women experience brain fog around the time of their periods each month. This is most likely because hormone levels are out of whack. During this time, estrogen levels tend to be at their lowest, and too little estrogen can have an impact on the brain, affecting a woman's ability to remember things or think clearly. Many women might notice that their mental alertness is more on target after their periods start and hormone levels begin to rise again. Menopausal women also typically have problems with brain fog because of a drop in hormone levels.


People who frequently experience problems thinking clearly might want to examine their daily intake of certain vitamins. Vitamins B, C, and E are all very important for proper brain function, and a person with a diet deficient in these nutrients might feel the effects mentally. Citrus fruits are great sources of vitamin C, and bananas, whole grains, and most dairy products contain lots of B vitamins. Vitamin E is abundant in sunflower seeds and almonds. A person who rarely eats foods containing these vitamins should consider taking supplements to help improve mental health.

Brain fog is also often the result of other things such as depression, stress, and a lack of sleep. All of these things can negatively impact the mind and cause a person to feel scattered and forgetful. People who have regular problems with this condition may benefit from getting more sleep and reducing the amounts of stress in their lives to see if it makes a difference. Depression can also be treated, although treatment options normally depend on the cause and severity of it.

A person who is experiencing constant problems with brain fog might want to see a doctor if simple things like getting more sleep and taking vitamins do not seem to help. It can occasionally be a sign of other problems, such as Alzheimer's disease or fibromyalgia. Alzheimer's disease typically affects elderly people, but fibromyalgia can happen to anyone at any age, although it does tend to be more common in women. Fibromyalgia can cause impaired mental function in addition to pain in the joints and fatigue. Most doctors should be able to determine if problems with mental function are related to either of these disorders.


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Post 2

@anon257565 I'd say that's not normal. I think you should see your doctor, as it could be related to some sort of physical illness (like blood sugar/diabetes, blood pressure/heart issue, others).

Post 1

I am going to be 40 soon and I am having a hard time focusing and sometimes finishing sentences, is this normal? I have never been diagnosed with any mental disabilities. It is seriously affecting my work and I stress out over each mistake I make no matter how small. What should I do?

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