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Can multiple sclerosis (MS) cause brain fog?

The term “brain fog” can be used to describe a number of cognitive problems. Most commonly, what people are experiencing is slowed thinking or a change in the brain's capacity to efficiently move information and store it for later use. That function is critical for memory. The faster we can sort and retain information, the more we can learn in a short time.

Compromised processing speed is a nonspecific indication that there may be a problem in the brain. Certainly, this can be from multiple sclerosis (MS), due to the disruption of neural pathways associated with demyelination. Some medications, particularly those that have a sedating impact on the central nervous system, may also negatively affect processing speed. This problem can also be caused by emotional distress, particularly depression. 

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.