What Is MS ‘Brain Fog’?

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Brain fog can be a symptom of MS that causes you to feel like your thinking is cloudy.

Multiple sclerosis affects the entire central nervous system, including the brain and the spinal cord. And as a consequence of that, the information being provided to the processing components of the brain in patients with MS can be affected in terms of, how do you use that brain?

Up to 65% of people with MS have symptoms that affect different areas of thinking. Some common signs are trouble with your short-term memory and attention. You might forget things like appointments or a recent phone number you learned. You may also get distracted more easily and have a hard time remembering what you were saying or doing. Another common symptom is feeling like you can't think as quickly as you used to.

Many people with MS say their ability to process thoughts and respond slows down at times. Some people eventually develop more severe symptoms of brain fog. You might have a hard time making plans, getting started on projects, or solving problems. Or you could have trouble being mindful of how you act, which can lead to impulsive speech or a quick temper. But if you have brain fog, it may never become severe and your medical team can help you take charge of it.

The future is very bright, and there is always hope. It's very, very important to know your doctor is one of your partners in an alliance that, together-- you, your friends, your family, and your medical team-- that team is central in helping you to help yourself.