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Understanding Brain Fog: Symptoms, Causes, and How to Tackle It

Have you ever been in the middle of a conversation, only for your train of thought to vanish? Or perhaps a word or detail you were about to say is on the tip of your tongue, but it slips away. While this may seem like a normal aging issue, it can sometimes signal something more—brain fog. This term is often used to describe a collection of cognitive symptoms, and it can be a sign of underlying conditions. Let’s dive deeper into what brain fog is and how to manage it.

What is Brain Fog and What Are Its Symptoms?

Brain fog isn’t a specific diagnosis. Instead, it’s a combination of cognitive symptoms that can vary from person to person. Common symptoms include:

  • Difficulty with focus and attention
  • Trouble remembering details like names or words
  • Slower reaction times and processing information
  • Fatigue or lethargy
  • Clouded judgment
  • Frequent loss of train of thought

These symptoms might seem like memory problems, but they are more about difficulty processing and retaining information. You can’t remember details if the information isn’t properly processed in the first place.

The causes of brain fog are unclear, but several factors may contribute. For example, your immune system might trigger brain inflammation, leading to cognitive disruptions. Chronic stress, hormonal changes, and glucose imbalances can also worsen symptoms. Poor sleep and nutrition may further exacerbate the issue, and brain fog can be linked to psychiatric disorders in some cases.

Conditions That Cause Brain Fog

Many conditions can lead to brain fog. Some common examples include:

  • Visual disturbances
  • Anxiety and depression
  • Chemotherapy treatment
  • Food sensitivities
  • Hypoglycemia and diabetes
  • Autoimmune disorders

Recently, long COVID has also become a known cause of brain fog. The symptoms of COVID-19, like disrupted sleep or increased stress, can contribute to brain fog even after the initial infection has passed.

How to Manage Brain Fog

While there are no medications to directly treat brain fog, you can reduce its symptoms by making lifestyle changes. Focus on improving your sleep, eating a balanced diet, and staying physically active. These small changes can reduce stress, improve nutrition, and help regulate the immune system.

Improving brain fog is a gradual process. It won’t change overnight, but consistent efforts will gradually reduce symptoms and enhance your overall well-being.

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Jang - Rehab Specialist
Rehab Specialist

Jang

Jang was born in Incheon, South Korea, and moved to the U.S. when he was one year old. He was raised in Morgan Hill, and from a young age, he knew that helping others made him happy. At 12, he began volunteering in various capacities, including preparing food, cleaning trash, assisting with after-school activities, and more. However, it wasn’t until he took his first actual science course in high school at age 14 that he developed a passion for science.

Combining his love for helping others with his interest in science, Jang attended the University of California, Davis, and earned a Bachelor of Science in Neurobiology, Physiology, and Behavior (NPB). His time there cemented his passion for healthcare. Since graduating, he has worked at various clinics, hoping to gain as much knowledge and experience as possible to positively impact people’s lives.

Initially, Jang aspired to become a Physician Assistant. After working at Norcal Brain Center for a year and witnessing its profound impact on patients, he hopes to become a clinical neurologist one day.

He enjoys working out, spending time outdoors, and exploring new restaurants with friends and family in his free time.

Shrina: Rehab Specialist
Rehab Specialist

Shrina

Originally from the Bay Area, Shrina moved to sunny San Diego to pursue her education at the University of California, San Diego, where she earned a Bachelor of Science in Human Biology. After several years of exploring life on the coast, she returned to her hometown of San Jose, where she is thrilled to be surrounded by her large, supportive family.

Shrina is working toward becoming a Physician Assistant—a journey that, while challenging, is deeply fulfilling. She embraces every step of the process as an opportunity for professional and personal growth, believing that each experience shapes her into the compassionate caregiver she aspires to be. From a young age, she has been driven by a desire to help others meaningfully, a passion that has guided her throughout her career.