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  1. Mar 6, 2024 · Brain fog, or mental fog, is often described as feeling mentally drained and unable to concentrate. Signs of brain fog include reduced cognitive functioning or difficulty with paying attention, keeping focus, multitasking, and memory recall.

  2. Brain fog, also called mental fog, can happen after an illness, as a side effect of a medication (like chemotherapy) or as a symptom of an underlying condition. A healthcare provider can help you determine what’s causing brain fog to help you feel more like yourself.

    • Stress. Chronic stress can increase blood pressure, weaken the immune system, and trigger depression, according to a 2017 review of research. It can also cause mental fatigue.
    • Lack of sleep. Poor sleep quality can interfere with how well your brain functions, according to 2021 research. The goal is to usually aim for 8–9 hours of sleep every night.
    • Hormonal changes. Research from 2018 suggests hormonal changes can also cause brain fog. Levels of the hormones progesterone and estrogen increase during pregnancy.
    • Diet. Diet can also play a role in brain fog. Vitamin B12 supports healthy brain functioning. A 2021 research review found that a vitamin B12 deficiency can affect cognitive function and bring about brain fog.
  3. Jun 13, 2022 · Brain fog is a cluster of cognitive symptoms that can affect your focus, memory, judgment and fatigue. Learn about the possible causes, such as COVID-19, depression, hormonal changes and more, and how to cope with brain fog.

  4. Mar 8, 2021 · Brain fog is a term for sluggish, fuzzy thinking that can affect people who have recovered from COVID-19. Learn how COVID-19 can damage the brain, what to do if you have brain fog, and how to clear it with lifestyle changes.

    • hhp_info@health.harvard.edu
  5. Jul 5, 2022 · People who experience brain fog often describe it as a sense of confusion or disorganization, disorientation or feeling scattered. A diminished ability to react and difficulty...

  6. Nov 8, 2022 · Brain fog is a term for mental sluggishness and fuzziness that can affect your focus, memory, and mood. It can be caused by various factors, such as lack of sleep, stress, depression, or COVID-19, and can be improved by some lifestyle changes.

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