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Why Your Brain Loves Chocolate: The Neuroscience Behind This Sweet Treat

July 7th was World Chocolate Day, and while many celebrated by indulging in a square (or three), at Norcal Brain Center, we’re digging deeper into why your brain craves chocolate and how it can support your neurological health.

Whether you’re navigating memory loss, concussion recovery, migraines, vestibular syndrome, light sensitivity, dizziness, or brain fog, understanding the neuroscience of chocolate may help you leverage this delightful treat with intention.

Chocolate and Neuroplasticity: Building Brain Resilience

Neuroplasticity, the brain’s ability to rewire itself, is a cornerstone of concussion rehabilitation and traumatic brain injury therapy. Flavonoids in dark chocolate have been shown to enhance neuroplasticity by increasing brain-derived neurotrophic factor (BDNF), a protein that supports neuron growth and repair.

For those recovering from concussion-related symptoms like poor memory, brain fog, or early memory loss, adding moderate amounts of high-cacao chocolate may complement your brain-based rehab by:

Chocolate and Blood Flow: Fueling Brain Healing

Many patients experience fatigue, lightheadedness, dizziness, vertigo, and headaches after a concussion. Chocolate can improve cerebral blood flow, helping deliver oxygen and nutrients to brain areas undergoing repair.

A small piece of dark chocolate (70% cacao or higher) may help:

  • Support vestibular disorder treatment through improved circulation
  • Reduce feelings of dizziness and vertigo
  • Ease migraines and headaches

Note: While chocolate may aid blood flow, be mindful of triggers if you have migraines sensitive to chocolate.

Chocolate and Mood: Supporting Emotional Health During Recovery

Concussion and TBI often bring emotional symptoms, including:

  • Feeling frustrated or impatient
  • Easily angered
  • Feeling depressed or tearful
  • Restlessness

Chocolate contains phenylethylamine (PEA), which helps elevate mood by stimulating the release of endorphins. It also supports serotonin production, which can ease emotional dysregulation during recovery.

This may be beneficial for patients experiencing insomnia, sleep disturbance, and restlessness post-concussion, as mood regulation is tightly linked to sleep quality.

Chocolate and Sleep: Friend or Foe?

Sleep challenges like difficulty falling asleep, staying asleep, insomnia, and sleep apnea side effects are common in post-concussion syndrome.

While chocolate has magnesium, which supports relaxation and sleep, it also contains caffeine and theobromine, which may disrupt sleep if consumed too close to bedtime. If you struggle with sleep problems and disorders, enjoy chocolate earlier in the day to avoid worsening insomnia and sleep issues.

Chocolate for Nausea: A Surprising Ally?

Nausea, vomiting, and appetite changes can be part of concussion recovery. While chocolate isn’t a traditional remedy for nausea, small amounts of dark chocolate can sometimes help settle the stomach for those who tolerate it well.

For post-concussion patients with unexplained vomiting or nausea, consult your provider first before using chocolate as a remedy, as it may not be suitable for all.

What Type of Chocolate Is Best for Brain Health?

Not all chocolates are created equal. For neurological benefits:

  • Choose dark chocolate with at least 70% cacao for the highest flavonoid content
  • Avoid chocolates high in sugar and dairy additives
  • Limit portions to 1-2 squares per day to avoid excessive caffeine and sugar intake

Can Chocolate Help with Memory Loss?

Studies suggest flavonoids in chocolate may:

  • Improve cognitive performance and memory
  • Support brain health in aging populations
  • Assist with brain fog and memory lapses

However, chocolate is not a replacement for concussion therapies, TBI rehabilitation, or therapy for memory loss, but it can complement a neurorehabilitation plan.

Chocolate, Balance, and Vestibular Symptoms

For those dealing with vestibular syndrome, dizziness, and balance issues, chocolate’s impact on blood flow may support stability, but watch for potential migraine triggers. Balance retraining and vestibular rehabilitation remain essential.

Integrating Chocolate into a Brain-Healthy Lifestyle

To leverage chocolate’s neurological benefits:

  • Pair with brain-based rehab and neuroplasticity exercises
  • Combine with hydration, movement, and vestibular retraining
  • Eat alongside brain-boosting foods like omega-3-rich fish, leafy greens, and nuts
  • Use as a reward post-therapy to enhance motivation during your healing journey

Key Takeaways

  • Chocolate supports neuroplasticity, memory, blood flow, and mood regulation during concussion recovery.
  • Choose dark chocolate (70%+ cacao) in moderation for the most brain benefits.
  • It may aid fatigue, dizziness, and mild mood symptoms, but can disrupt sleep if consumed late.
  • Chocolate should complement, not replace, evidence-based concussion treatment.

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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.