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Have you ever had teamwork that just clicks? What might be happening in both brains? 🧠✨A new Nature Neuroscience study l...
10/22/2026

Have you ever had teamwork that just clicks? What might be happening in both brains? 🧠✨
A new Nature Neuroscience study looked at cooperation in a decision-making game. Researchers recorded activity from two people’s brains as they made choices. When they cooperated, activity patterns in the amygdala, a brain area involved in emotion and social decisions, became more alike. The pattern also helped predict whether they would cooperate on their next choice.
It’s a fascinating clue about how people anticipate and respond to each other. The study was small and used a game, not an everyday conversation. It doesn’t show that brains send electricity to each other, or that synchrony explains why two people click.
Could this kind of coordination play a role when a conversation flows? That’s a question for future research.

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Ni et al., Nature Neuroscience (2026).

Could the adult brain make new neurons? Scientists are finding clues in the hippocampus, a region involved in memory. Wh...
10/21/2026

Could the adult brain make new neurons? Scientists are finding clues in the hippocampus, a region involved in memory. What these cells do and how they relate to brain aging and dementia remains an active research question.
The science is still unfolding but each discovery brings us closer to understanding how the adult brain changes, adapts, and continues to surprise us. 🧠🔬

Caring for someone with dementia can bring love, grief, exhaustion, and uncertainty, sometimes all in the same day. It ...
10/20/2026

Caring for someone with dementia can bring love, grief, exhaustion, and uncertainty, sometimes all in the same day. It can be a lot to navigate for the person with dementia and the friends and family beside them.

Need support? Call the Alzheimer's Association 24/7 Helpline at 800-272-3900, or visit alz.org. The helpline is free and confidential. 💜

Menopause changes more than hormones.A new Nature Medicine study looked at blood-protein patterns across nearly 15,000 w...
10/17/2026

Menopause changes more than hormones.
A new Nature Medicine study looked at blood-protein patterns across nearly 15,000 women and found that menopause was associated with measurable changes in biological pathways tied to inflammation, metabolism, and brain function.
Researchers also found that these menopause-related protein patterns were associated with cognitive aging and dementia risk later in life.
What we don’t know yet is just as important:
We don’t know whether these molecular changes are permanent.
We don’t know how much they can be modified.
And this study does not show that menopause causes dementia.
What it does suggest is that menopause may be an important window for understanding women’s brain health, not just reproductive health.

Nature Medicine, 2026.



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WALK. LIFT. REPEAT.When it comes to brain health, there isn’t one “best” exercise. The strongest approach may be a combi...
10/11/2026

WALK. LIFT. REPEAT.
When it comes to brain health, there isn’t one “best” exercise. The strongest approach may be a combination.
Aerobic movement matters. In a 2025 analysis of 29 randomized trials involving more than 1,500 people with Alzheimers’s disease, aerobic exercise ranked highest among the exercise types studied for improvement in overall cognition. That does not mean exercise reverses Alzheimer’s, but it adds to the evidence that movement can support cognitive function even after a diagnosis. Strength matters too. Resistance training helps preserve muscle, mobility and physical function as we age, and research also suggests benefits for cognition.
For prevention, the evidence is broader, long-term observational studies consistently associate greater physical activity with a lower risk of Alzheimer’s disease and dementia. A 2025 dose-response meta-analysis including more than 1.4 million people found higher physical activity was associated with lower Alzheimer’s risk, an association, not proof that exercise prevents the disease.
So the takeaway is simple.
Walk. Lift. Repeat.
You need movement you can keep doing.
Your brain likes variety too.

Why does stress make your mind go blank?You know the feeling: someone asks you a question, the pressure rises, and sudde...
10/10/2026

Why does stress make your mind go blank?
You know the feeling: someone asks you a question, the pressure rises, and suddenly the answer you know seems to disappear. Think stage fright!
Acute stress can interfere with working memory and memory retrieval, the systems you rely on to hold information in mind and pull it back when you need it. Research suggests that stress-related changes in noradrenaline and cortisol can temporarily disrupt these processes, especially when the pressure is immediate.
Two brain regions are especially important here:
The prefrontal cortex helps with working memory, attention, and flexible thinking.
The hippocampus helps retrieve stored memories.
Under stress, the brain can shift resources toward rapid threat detection and responding, while the systems supporting deliberate, flexible recall may temporarily work less efficiently.
That’s why the word, name, or answer can suddenly feel inaccessible… and then pop back into your mind later when the pressure is gone.
The memory may still be there. Stress can simply make it harder to reach in the moment.

Don’t overlook the beans. 🫘Beans and other legumes are simple, affordable foods that fit naturally into a brain-supporti...
10/09/2026

Don’t overlook the beans. 🫘
Beans and other legumes are simple, affordable foods that fit naturally into a brain-supportive eating pattern.
They provide fiber, plant protein, potassium, magnesium, and other nutrients that support overall cardiovascular and metabolic health, systems that matter to the brain too.
And the broader nutrition evidence is encouraging. A USDA systematic review found that dietary patterns higher in vegetables, fruits, legumes or beans, nuts, fish and unsaturated fats were associated with a lower risk of age-related cognitive decline, mild cognitive impairment, dementia and Alzheimer’s disease.
That does not mean beans prevent dementia.
It means they belong in the larger picture of the kind of eating pattern consistently associated with healthier aging.
Black beans. Chickpeas. Lentils. Cannellini beans.
Add them to soups, salads, grain bowls, tacos or pasta.
Brain health does not have to exotic, sometimes it looks like a humble bowl of beans.

To learn more go to: https://drkaplans.com/blogs/news/whats-on-your-plate-for-a-sharp-mind

Sometimes the first step in managing a feeling is simply naming it.“I’m anxious.”“I’m frustrated.”“I’m overwhelmed.”Rese...
10/08/2026

Sometimes the first step in managing a feeling is simply naming it.
“I’m anxious.”
“I’m frustrated.”
“I’m overwhelmed.”
Researchers call this affect labeling, putting an emotional experience into words.
Brain-imaging studies suggest that doing this can reduce activity in the amygdala, a region involved in emotional responding, while engaging areas of the prefrontal cortex involved in regulation. Naming a feeling doesn’t erase it. But it may help us move from simply reacting to noticing what is happening and deciding what to do next.
Notice it, Name it. Give yourself a moment to respond.

10/07/2026

My wife says I sleep like a vampire and she is not wrong. 🧛‍♂️

A dark room. White noise. Earplugs. A cool temperature. Same time. The same signals, night after night, telling my brain: it's time to sleep.

In a 2025 Biobank nstudy involving more than 82,000 adults, people with more regular slep patterns were less likely to be diagnosed with dementia during nearly eight years of follow-up.

That doen't prove that a regular sleep schedule prevents dementia. But it does suggest that the rhythm of our sleep mey matter, not simply the number of hours we spend in bed.

You don't have to copy my entire "sleep cave". Start with one consistent cue tonight and repeat it.

And if you snore loudly, gasp or stop breathing during sleep, or remain exhausted during the day, talk with your doctor about sleep apnea.

What is one sleep cue your brain recognizes every night?

To learn more visit: drkaplans.com

10/01/2026

Brain health isn't built in one dramatic movement.
It is supported through the choices we make, again and again throughout life.
The 2024 Lancet Commission estimated that nearly 45% of dementia cases could potentially be prevented or delayed by addressing 14 modifiable risk factors across the life course. This does not mean every case is preventable, and dementia is never someone's fault. But it does mean there are meaningful ways we can support brain health.
Move regularly, protect your sleep, choose a healthy diet, stay hydrated, remain socially connected, keep learning and stay curious, know your blood pressure, blood sugar or A1C, and cholesterol.
You don't need to change everything at once. Choose one small action you can repeat and begin there. Repetition builds habits.
In the weeks ahead, Dr. Kaplan will take a deeper look at practical, evidence-based ways to support brain health and make new neuroscience findings easier to understand.

What would you like to explore first?

Source: Livingston et al., The Lancet, 2024

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