Dementia rarely begins with memory loss. Long before names slip or directions blur, subtle changes may already be unfolding inside the brain—changes influenced by blood flow, vascular health, and metabolic strain. Increasingly, scientists are finding that the conditions we associate with heart disease in midlife may also shape how the brain ages decades later.
Tag: Brain
-
The Neuroscientist-Approved Snack That Boosts Afternoon Energy
The caffeine alternative you’ve been waiting for.
-
Feeling Foggy or Forgetful? How Menopause Changes The Brain
During the menopausal transition, gray matter, the brain tissue responsible for memory, focus, and decision-making, tends to shrink in certain regions, including the frontal and temporal cortices and the hippocampus. This helps explain why so many women describe a mental “fog” or trouble concentrating.
-
What Brazilian Supercentenarians Can Teach Us About Living To 110
Scientists studied people who lived to 110+ and found three biological advantages.
-
I'm A Doctor & Traditional Medicine Failed Me — Here's What Actually Worked
Spoiler alert: Your gut issues might not actually be about your gut.
-
This Widely Used Pesticide May More Than Double Parkinson’s Risk
Parkinson’s disease is often talked about as an inevitable part of aging or a roll of the genetic dice. But that explanation has always felt incomplete. Why do rates keep rising? And why do so many people with Parkinson’s have no clear family history at all?
-
Brain Health Challenge: Doctor Appointments for Your Mind and Body
Congratulations, you’ve reached the final day of the Brain Health Challenge! Today, we’re asking you to do a few things that might feel a bit out of left field — like getting your blood pressure checked.
No, it isn’t as fun as playing Pips, but experts say it’s one of the most important things you can do for your brain. That’s because heart health and brain health are intrinsically linked.
High blood pressure, in particular, can damage brain cells, and it’s a significant risk factor for stroke and dementia. When blood pressure is too high, it places stress on the walls of arteries in the brain. Over time, that added stress can cause the blood vessel walls to thicken, obstructing blood flow. In other cases, the increased pressure causes the artery walls to thin and leak blood into the brain.
These changes to the blood vessels can sometimes cause a large stroke to occur. More commonly, the damage leads to micro-strokes and micro-hemorrhages, which cause fewer immediate problems and often go unnoticed. But if someone has hypertension for years or decades, these injuries can build up, and the person may start to experience cognitive impairment.
High blood pressure “is known as a silent killer for lots of reasons,” said Dr. Shyam Prabhakaran, the chair of neurology at the University of Chicago. “It doesn’t cause you any symptoms until it does.”
Because the damage accumulates over many years, experts say that managing blood pressure in midlife matters most for brain health. Hypertension can be addressed with medication or lifestyle changes, as directed by your doctor. But the first thing you need to do is know your numbers. If your blood pressure comes back higher than 120/80, it’s important to take it seriously, Dr. Prabhakaran said.
While you’re at it, there are a few other aspects of your physical health that you should check on.
Your eyes and ears are two of them. Hearing and vision loss have both been shown to increase the risk of dementia. Experts think that with less sensory information coming in to stimulate the brain, the regions that process hearing and vision can start to atrophy. What’s more, people with sensory loss often withdraw or are left out of social interactions, further depriving them of cognitive stimulation.
Oral health can also affect your brain health. Research has found a connection between regular flossing and reduced odds of having a stroke. That may be because good oral health can help to reduce inflammation in the body. The bacteria that cause gum disease have also been tied to an increased risk of Alzheimer’s.
And have you gotten your shingles vaccine? There is mounting evidence that it’s a powerful weapon for protecting against dementia. One study found that it lowered people’s odds of developing the condition by as much as 20 percent.
To wrap up this challenge, we want you to schedule a few medical appointments that benefit your brain, as well as your body.
After five days of feeding, exercising and challenging your brain, you are well on your way to better cognitive health. Thanks for joining me this week, and keep up the good habits!
Dana G. Smith
Source link -
Meditation Could Improve Memory & Emotional Regulation, Study Finds
It’s no secret that meditation has a ton of benefits, from improving sleep quality to helping you feel more calm and centered. But according to new research published in the journal PNAS, meditation might also support emotional regulation and memory. Here’s what they found.
-
Brain Health Challenge: Try a Brain Teaser
Welcome back! For Day 4 of the challenge, let’s do a short and fun activity based around a concept called cognitive reserve.
Decades of research show that people who have more years of education, more cognitively demanding jobs or more mentally stimulating hobbies all tend to have a reduced risk of cognitive impairment as they get older.
Experts think this is partly thanks to cognitive reserve: Basically, the more brain power you’ve built up over the years, the more you can stand to lose before you experience impairment. Researchers still don’t agree on how to measure cognitive reserve, but one theory is that better connections between different brain regions corresponds with more cognitive reserve.
To build up these connections, you need to stimulate your brain, said Dr. Joel Salinas, a neurologist at NYU Langone Health and the founder and chief medical officer of the telehealth platform Isaac Health. To do that, try an activity that is “challenging enough that it requires some effort but not so challenging that you don’t want to do it anymore,” he said.
Speaking a second language has been shown to be good for cognition, as has playing a musical instrument, visiting a museum and doing handicrafts like knitting or quilting. Reading is considered a mentally stimulating hobby, and experts say you’ll get an even bigger benefit if you join a book club to make it social. Listen to a podcast to learn something new, or, better yet, attend a lecture in person at a local college or community center, said Dr. Zaldy Tan, the director of the Memory and Healthy Aging Program at Cedars-Sinai. That adds a social component, plus the extra challenge of having to navigate your way there, he said.
A few studies have found that playing board games like chess can be good for your brain; the same goes for doing crossword puzzles. It’s possible that other types of puzzles, like those you find in brain teaser books or from New York Times Games, can also offer a cognitive benefit.
But there’s a catch: To get the best brain workout, the activity should not only be challenging but also new. If you do “Wordle every day, it’s like well, then you’re very, very good at Wordle, and the Wordle part of your brain has grown to be fantastic,” said Dr. Linda Selwa, a clinical professor of neurology at the University of Michigan Medical School. “But the rest of your mind might still need work.”
So play a game you’re not used to playing, Dr. Selwa said. “The novelty seems to be what’s driving brain remodeling and growth.”
Today, we want you to push yourself out of your cognitive comfort zone. Check out an online lecture or visit a museum with your challenge partner. Or try your hand at a new game, below. Share what novel thing you did today in the comments, and I’ll see you tomorrow for Day 5.
Dana G. Smith
Source link -
Brain Health Challenge: Workouts to Strengthen Your Brain
Today, you’re going to do perhaps the single best thing for your brain.
When I asked neurologists about their top behaviors for brain health, they all stressed the importance of physical activity.
“Exercise is top, No. 1, when we’re thinking about the biggest bang for your buck,” said Dr. Gregg Day, a neurologist at the Mayo Clinic.
Numerous studies have shown that people who exercise regularly tend to perform better on attention, memory and executive functioning tests. There can be a small cognitive boost immediately after a workout, and the effects are sustained if people exercise consistently. And while staying active can’t guarantee you won’t develop dementia, over the long term, it is associated with a lower risk of it.
Researchers think that moving your muscles benefits your brain in part because of special signaling molecules called exerkines. During and after a workout, your muscles, fat and other organs release these molecules into the bloodstream, some of which make their way up to the brain. There, those exerkines go to work, helping to facilitate the growth of new connections between neurons, the repair of brain cells and, possibly, the birth of new neurons.
Exercise also appears to improve blood flow in the brain. That ramps up the delivery of good things to brain cells, like oxygen, glucose and those amazing exerkines. And it helps remove more bad things, namely toxic proteins, like amyloid, that can build up and damage brain cells, increasing the risk for Alzheimer’s.
All of the changes brought on by exercise are “essentially allowing your brain to age more slowly than if you’re physically inactive,” said Kirk Erickson, the chair of neuroscience at the AdventHealth Research Institute.
The benefits are particularly pronounced in the hippocampus, a region critical for learning and memory. In older adults, the hippocampus shrinks 1 to 2 percent a year, and it is one of the main areas affected by Alzheimer’s. Researchers think physical activity helps to offset some of that loss.
The best exercise you can do for your brain is the one you’ll do consistently, so find something that you enjoy and that fits easily into your life.
Walking is one option; two neurologists I spoke to said they got their exercise in by walking at least part of the way to their offices. Recent research suggests that just a few thousand steps a day can reduce the risk of dementia. It’s important to get your heart rate up, though, so “walk as though you’re trying to get somewhere on time,” said Dr. Linda Selwa, a clinical professor of neurology at the University of Michigan Medical School.
Or you could try swimming, cycling, Pilates, weight lifting, yoga, pickleball, dancing, gardening — any type of physical exertion can be beneficial.
If the thought of working out feels like a drag, try pairing it with something else you enjoy doing, like listening to an audiobook. This is a trick that Katherine Milkman, a professor who studies habits at The Wharton School of the University of Pennsylvania, calls “temptation bundling.”
For Day 3, we’re asking you to spend at least 20 minutes exercising for your brain. Go for a walk with your accountability partner if they’re nearby. (If not, call them and do a walk-and-talk.) Or let us find you a new workout to try, using the tool below. As usual, we can all meet in the comments to catch up and check in.
Dana G. Smith
Source link -
Brain Health Challenge: Try the MIND Diet
Welcome to Day 2 of the Brain Health Challenge. Today, we’re talking about food.
Your brain is an energy hog. Despite comprising about 2 percent of the average person’s body mass, it consumes roughly 20 percent of the body’s energy. In other words, what you use to fuel yourself matters for brain health.
So what foods are best for your brain?
In a nine-year study of nearly 1,000 older adults, researchers at Rush University in Chicago found that people who ate more of nine particular types of food — berries, leafy greens, other vegetables, whole grains, beans, nuts, fish, poultry and olive oil — and who ate less red meat, butter and margarine, cheese, sweet treats and fried food had slower cognitive decline.
Based on these findings, the researchers developed the MIND diet.
Large studies encompassing thousands of people have since shown that following the MIND diet corresponds with better cognitive functioning, a lower risk of dementia and slower disease progression in people with Alzheimer’s. People benefit from the diet regardless of whether they start it in midlife or late life.
Experts think the foods included in the MIND diet are especially good for the brain because they contain certain macro and micronutrients.
Berries and leafy greens, for example, are rich in polyphenols and other antioxidants, said Jennifer Ventrelle, a dietitian at Rush and a co-author of “The Official Mind Diet.” Many of these compounds can cross the blood-brain barrier and help to fight inflammation and oxidative stress, both of which can damage cells and are linked to dementia.
Nuts and fatty fishes, like salmon and sardines, contain omega-3 fatty acids, which are important for building the insulating sheaths that surround the nerve fibers that carry information from one brain cell to another.
Whole grains and beans both contain a hefty dose of fiber, which feeds the good microbes in the gut. Those microbes produce byproducts called short-chain fatty acids that experts think can influence brain health via the gut-brain axis.
You don’t have to revamp your whole diet to get these nutrients. Instead, think about “MIND-ifying” whatever you already tend to eat, said Dr. Joel Salinas, a neurologist at NYU Langone Health and the founder and chief medical officer of the telehealth platform Isaac Health. For instance, add a handful of nuts or berries to your breakfast.
Today’s activity will help you MIND-ify your own meals. Share your choices with your accountability partner and in the comments, and I’ll discuss the ways I’m adjusting my diet, too. For added inspiration, check out these MIND-approved recipes from New York Times Cooking.
Dana G. Smith
Source link -
Brain Health Challenge: Test Your Knowledge of Healthy Habits
Welcome to the Brain Health Challenge! I’m Dana Smith, a reporter at The New York Times, and I’ll be your guide.
To live a healthy life, it’s crucial to have a healthy brain. In the short term, it keeps you sharp and firing on all cylinders. In the long term, it can reduce your risk of cognitive decline, dementia and stroke.
Practicing basic healthy behaviors, like eating nutritious food and getting regular exercise, is the best way to enhance your brain power and protect the longevity of your neurons. These types of lifestyle habits can benefit the brain at any age. And while they won’t guarantee that you’ll never develop dementia or another brain disease, several clinical trials have shown that they can improve cognition or slow decline.
Every day this week, you’ll do an activity that’s good for your brain, and we’ll dig into the science behind why it works. Some of these activities can provide a small immediate cognitive benefit, but the bigger reward comes from engaging in them consistently over time. So along with the neuroscience lessons, we’ll include a few tips to help you turn these actions into lasting habits.
To keep you accountable, we’re encouraging you to complete this challenge with a friend. If you don’t have a challenge buddy, no problem: We’re also turning the comments section into one big support group.
There are so many fascinating ways your daily behaviors affect your brain. Take sleep, for example.
Lots of studies have shown that getting a good night’s rest (seven to eight hours) is associated with better memory and other cognitive abilities. That’s because sleep, especially REM sleep, is when your brain transfers short-term memories — things you learned or experienced during the day — into long-term storage.
Sleep is also when your brain does its daily housekeeping. While you rest, the brain’s glymphatic system kicks into high gear, clearing out abnormal proteins and other molecular garbage, including the protein amyloid, which is a major contributor to Alzheimer’s disease. A buildup of amyloid is one reason experts think that people who routinely get less sleep have a higher risk of dementia.
What other behaviors play a big role in brain health? For today’s activity, we’re going to test your knowledge with a quiz. Share your score with your accountability partner and in the comments below — I’ll be in there too, cheering you on.
Dana G. Smith
Source link -
Sleep Is Crucial For Preventing Neurological Disease, Experts Say
Sleep is a pivotal factor to our overall health, impacting everything from mood, to digestion, to energy levels. And according to research from the American Neurological Association, it could also be crucial for preventing cognitive and neurological conditions like Alzheimer’s.
-
This "Normal" Sign Of Aging Could Actually Signal Dementia Risk
Here’s why this scary finding could prove very helpful for disease prevention.
-
How Creatine Helps Your Brain Perform Better Under Stress
Brain health depends on steady energy production, especially during stress, fatigue, or heavy cognitive demand. Researchers are now turning their attention to a nutrient that quietly supports all three, and it’s one most people underestimate: Creatine.
-
Inside The Brains Of Super-Agers: People 100+ Share These Traits
“The super-agers’ brains look indistinguishable from a group of healthy 50- to 60-year-olds. They really seem to be on a different trajectory,” Rogalski says. Her latest work is evaluating super-agers’ life stories to get a better idea of how they’ve handled stress, whether it has involved surviving a Nazi death camp, coping with the death of a child, or dealing with cancer.
-
The Hidden Effects Of Long COVID On Your Gut, Brain & Energy
A few months ago, I got my routine lab work back, and one number stopped me in my tracks. My neuroinflammation marker was off the charts. Which made no sense. I felt great. I was training regularly, sleeping well, and eating clean. But my doctor, Frank Lipman, M.D., told me it could be a lingering sign of Long COVID, even though I hadn’t had symptoms in months.
-
The Top 7 Health Benefits Of Almonds & Serving Size Tips
In terms of appearance, almonds are light brown and oval-shaped, with a smooth outer shell. They have a rich, nutty flavor that lends itself well to a wide range of recipes, adding an extra crunch to salads or bringing a tender texture to baked goods. They also make a healthy snack as is and can be enjoyed roasted, raw, or salted.
-
Study Finds Link Between ADHD & Alzheimer’s Disease
Scientists have previously hypothesized that attention-deficit/hyperactivity disorder (ADHD) may be a risk factor for cognitive decline and Alzheimer’s disease (AD). However, the lack of studies investigating age-related cognitive decline in individuals with ADHD later in life has prevented a distinct association between ADHD and cognitive decline—until now.
-
Move This Much Each Day To Beat Hormonal Brain Fog, Study Finds
If you’ve ever blamed your hormones for brain fog or slower thinking, you’re far from alone. Many women report feeling less focused or sharp during certain phases of their menstrual cycle. But new research published in Sports Medicine challenges that long-held assumption.