Brain Changes Initiative

Menopause doesn’t just change hormones—it also changes your brain’s structure and how it uses energy and networks—which can feel like brain fog or memory changes. Some shifts are a natural part of the transition and not a sign of inevitable decline.

APOE‑4 + menopause:
If you carry the APOE‑4 gene variant, studies show a stronger link between earlier menopause and faster memory decline and cognitive risk—potentially because the brain becomes more sensitive to hormonal and metabolic stressors.

Some research also suggests that hormone therapy started early in the transition might be associated with better memory and larger brain volumes in APOE‑4 carriers—but this is not settled science and depends on timing, individual health, and risks.

You’re not alone and there’s support. Lifestyle, sleep, movement, diet, social connection, and individualized care all make a difference.

Sources:
- Boyle, C. P., et al. (2021). Estrogen, brain structure, and cognition in postmenopausal women. Humm Brain Mapp.
- Sochacka, M., et al. (2023). Cognitive Decline in Early and Premature Menopause. Int. J. Mol. Sci.
- Saleh, R. N. M., et. al. (2023). Hormone replacement therapy is associated with improved cognition and larger brain volumes in at-risk APOE4 women: results from the European Prevention of Alzheimer’s Disease (EPAD) cohort. Alzheimer’s Research & Therapy

Neuroscience shows that your brain’s energy depends on sleep rhythms, mitochondrial health, hydration, neurotransmission, and circadian biology—not just caffeine or willpower.

Sources:
- Desai, D., et al. (2024). Exploring the role of circadian rhythms in sleep and recovery: A review article. Cureus.
- Steiner, J.,et al. (2011). Exercise training increases mitochondrial biogenesis in the brain. Journal of Applied Physiology
- Reddy, V. S., et al. (2024). Pharmacology of caffeine and its effects on the human body. European Journal of Medicinal Chemistry Reports
- Gasmi, A., Nasreen, A., et al. (2022). Neurotransmitters regulation and food intake: The role of dietary sources in neurotransmission. Molecules

Why do we dream? 💤 Dreams aren’t random—they’re a neurobiological phenomenon linked to memory, emotion, and experience.

During REM sleep, the brain shows activity patterns similar to waking—especially in visual and emotional networks—while logical reasoning centers quiet down, explaining the vivid, bizarre nature of many dreams

Dreams also help consolidate memories and regulate emotions, meaning sleep literally improves your memory and emotional resilience

Even if you don’t remember them, you’re likely dreaming multiple times every night—your brain is always busy transforming.



Sources:
- Hobson, J. A., & Pace‑Schott, E. F. (2002). The cognitive neuroscience of sleep: Neuronal systems, consciousness and learning. Nature Reviews Neuroscience
- Scarpelli, S., et al. (2019). The functional role of dreaming in emotional processes. Frontiers in Psychology
- Nir, Y., et al. (2010). Dreaming and the brain: From phenomenology to neurophysiology. Trends in Cognitive Sciences

You can train the highest form of intelligence… here’s how.

Your brain isn’t a fixed system—it’s a learning system that can get better at thinking about thinking. That’s what metacognition really is: the ability to monitor, evaluate, and regulate your own cognitive processes.

Research shows that targeted practice can improve metacognitive functioning across domains (memory, strategy use, self-evaluation)—especially when you combine reflection with structured activities.

Here’s how to train your brain’s thinking system:

1. Predict & review: Before action, estimate your performance; after, compare outcome.
2. Strategic questioning: Ask yourself about strategies and evidence.
3. Reflective journaling: Write about wins, misses, and adjustments.
4. Feedback loops: Seek metacognitive (not just positive) feedback.
5. Goal checkpoints: Break tasks into steps + review thinking at each phase.
6. Mindful meta-awareness: Mindfulness supports observing your own thought processes.

Training these habits rewires how your brain evaluates and adjusts itself.

Sources:
- Sella, E., et al. (2022). Efficacy of memory training interventions targeting metacognition for older adults: A systematic review and meta-analysis. Aging Ment Health
- Braad, E., et al. (2022). Improving metacognition through self-explication in a digital self-regulated learning tool. Educational Technology Research and Development
- Ho, W. W. Y., et al. (2025). Role of reflective practice and metacognitive awareness in the relationship between experiential learning and positive mirror effects: A serial mediation model. Teaching and Teacher Education
- Luo, T., et al. (2023). The impact of feedback on metacognition: Enhancing in easy tasks, impeding in difficult ones. Consciousness and Cognition
- Sanger, K. L.,et al. (2016). Mindfulness training with adolescents enhances metacognition and the inhibition of irrelevant stimuli: Evidence from event-related brain potentials. Trends in Neuroscience and Education

Metacognition—thinking about your thinking—is one of the most powerful forms of intelligence your brain can develop. It isn’t about memorizing facts or how fast you think… it’s about becoming aware of how you think, evaluate, and regulate your own mind in real time.

Research shows that metacognition involves both awareness of your cognitive processes and the ability to control and adjust them as needed—which directly impacts how well you learn, make decisions, and solve problems.

People with stronger metacognitive skills tend to be better at things like:
• knowing when they don’t understand something
• shifting strategies when something isn’t working
• making smarter decisions instead of repeating old mistakes
• accessing creative problem-solving abilities more easily

The neuroscience behind it shows that networks in the prefrontal and parietal cortex—brain regions linked to self-monitoring and executive control—play a central role.

And here’s the best part: metacognition isn’t fixed. You can train and strengthen it by practicing reflection, pausing before reacting, and noticing how your mind is operating in different situations.

Sources:
- Fleur, D. S.,et al. (2021). Metacognition: Ideas and insights from neuro- and educational sciences. npj Science of Learning
- Terneusen, A., et al. (2024). The many facets of metacognition: Comparing multiple measures of metacognition in healthy individuals. Metacognition and Learning
- Jiang, L., et al. (2023). Individuals with high metacognitive ability are better at divergent and convergent thinking. Journal of Intelligence

As we step into 2026, I’m thinking less about resolutions and more about principles.

As a doctor, and as someone who’s had to rebuild my own brain from trauma (physical, mental and emotional), I’ve learned this: The brain doesn’t change because of motivation for immediate reward. It changes because of how you live every day.

These philosophies aren’t about doing more. They’re about doing what matters—with intention, compassion, and patience.

If your goal this year is better focus, better health, better relationships, or simply more peace—start here.

Your brain is always listening. What will you teach it in 2026?

— Dr. Matthew Galati

If you’re going to a sunny beach or snowy resort this winter, don’t let jet lag steal your first day 😴

Your brain’s circadian clock can be reset faster with timed light exposure, melatonin at the right time, shifted sleep schedules, and meal timing—science shows these cues help your internal clock sync with your destination.

- Light is your strongest natural signal—morning sun helps after eastward travel, evening light after westward. 
- Short‑term melatonin (0.5–5 mg) taken close to your target bedtime can reduce jet lag symptoms. 
- Aligning meals to local time also speeds reset.

Sources:
- Crowley, S. J., & Eastman, C. I. (2017). Light and melatonin treatment for jet lag disorder. Reference Module in Neuroscience and Biobehavioral Psychology.
- CDC. (2025). Jet lag disorder.

Why do holiday smells feel like instant time travel?

Because smell has a direct neural highway to the brain’s emotional and memory centers. Unlike sight or sound, olfactory signals go from your nose → olfactory bulb → amygdala & hippocampus, making scent-triggered memories especially vivid and emotional—especially from childhood holidays you experienced again and again.

Sources:
- Arshamian, A., et al. (2013). The functional neuroanatomy of odor-evoked autobiographical memories cued by odors and words. Neuropsychologia
- Willander, J., & Larsson, M. (2006). Smell your way back to childhood: Autobiographical odor memory. Psychonomic Bulletin & Review

Comment the holiday smell that instantly takes you back 👇



Your brain goes through enormous rewiring at specific life stages, showing four key turning points at ages 9, 32, 66, and 83. 🧠

This groundbreaking research found that the structure of our neural networks shifts at these ages, marking five distinct phases across the human lifespan—from childhood wiring to late aging specialization.

Sources:
- Mousley, A., Bethlehem, R. A. I., Yeh, F. C., & Astle, D. E. (2025). Topological turning points across the human lifespan.Nature Communications.

Your brain is always changing—but not always for the better.

Chronic stress, constant multitasking, poor sleep, low activity, and bad diet? They can wire your brain in ways you don’t want.

Sources:

- Ren, B., et al. (2025). Maladaptive neuroplasticity under stress: Insights into neuronal and synaptic changes in the prefrontal cortex. Molecular Neurobiology
- Ophir, E., et al. (2009). Cognitive control in media multitaskers. PNAS
- Lövdén, M., et al. (2010). A theoretical framework for the study of adult cognitive plasticity. Psychological Bulletin, 136(4), 659–676.
- Pickersgill, J. W., et al. (2022). The combined influences of exercise, diet, and sleep on neuroplasticity. Frontiers in Psychology

Everyday tasks like cooking, shopping, and even commuting can double as cognitive workouts if you approach them creatively.

Try these 5 strategies ⬆️ this week…