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Daily Edition • Friday, July 3

Why Some Brains Resist Alzheimer’s

Two figures face each other, one with foliage and the other with flowers on their heads, set against a soft green background.

Midjourney

Cognitive Conundrum: One of the stranger puzzles in neurology is that brain changes linked to Alzheimer’s don’t always match Alzheimer’s symptoms. Somewhere between 20 and 30 percent of adults aged 65 to 75 show disease-related brain changes without any signs of cognitive impairment. What separates those who stay sharp from those who don’t (even when the biological picture looks similar), has become one of the most perplexing questions in the field.

The Study: New research published in Neurology analyzed data from over 600 cognitively healthy adults around age 70, measuring Alzheimer’s-related pathology using blood markers and brain imaging, and then comparing these findings with cognitive performance across domains such as memory and executive function. People whose brains appeared younger than expected for their age showed a weaker link between pathology levels and cognitive decline.

The Takeaway: Researchers call this capacity “brain reserve,” and the encouraging part is that brain aging appears at least partially responsive to lifestyle factors, with physical activity specifically flagged as a potential contributor.

Keep in Mind: The study was cross-sectional, so researchers can’t confirm causation, and more work is still needed to make any definitive claims.

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How Well Do You Know Your Protein?

A box filled with various packaged meats, including ground beef, bacon, and salmon, with a hand reaching for a package.

Courtesy: ButcherBox

You can read the nutrition label. You can compare prices. But when you’re standing in the grocery aisle, it’s not always easy to know where your meat came from, how it was raised, or whether the quality matches the promise.

That’s where ButcherBox comes in. They deliver high-quality meat and seafood you can trust, with clear sourcing standards across everything from 100% grass-fed, grass-finished beef to wild-caught seafood and free-range organic chicken.

No guesswork. No settling. Just better protein, delivered to your freezer. And right now, our readers get $60 off ($20 off your first 3 boxes) with code ALLHEALTHY.

See How They Source

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Fitness

How To Improve Your Agility

Kettlebells and a medicine ball on gym flooring with blurred gym-goers in the background.

Ambitious Studio/Unsplash

Power Up: Cardio keeps your heart healthy. Strength training builds muscle. But there’s another piece of the fitness puzzle that often gets passed over: agility, or your ability to move quickly, react fast, and stay balanced.

How to Do It: Experts recommend adding one explosive power workout each week, focusing on moving with speed. Beginners can try fast sit-to-stands from a chair or elevated plyo push-ups, standing up or pushing away as quickly as possible before lowering slowly. If you already strength train regularly, add exercises like squat jumps, jumping jacks, kettlebell swings, or medicine ball slams. To improve your coordination, you can’t go wrong with ladder and cone drills. And if you really want to have some fun while improving your agility, join a local beer league! Soccer, flag football, ultimate frisbee, and kickball will challenge your skills — and you might make a new friend.

The Benefits: Power-based exercises engage fast-twitch muscle fibers, which naturally decline with age. Training them can improve balance, increase speed, help prevent falls, boost sports performance, and make everyday movements — from catching yourself after a stumble to playing with your kids in the yard — feel easier.

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Personal Growth

How “Body Doubling” Can Boost Focus and Productivity

Two people sitting on grass, one using a laptop and the other writing on a clipboard, with notebooks nearby.

Kateryna Hliznitso/Unsplash

You Should Know: Lots of us studied with friends or study groups during college, but we may have gotten away from working that way after graduation. Working with others actually has a name — “body doubling” — and it could help people with ADHD or who have trouble staying on task find more focus and get more done.

Going Deeper: ADHD directly affects the part of the brain in charge of executive functioning, which regulates planning, attention, and inhibitory control. People with ADHD often struggle with the motivation to get started on a project and to keep focused on the task once they do. Having a person working alongside you serves as a form of “external executive function.” If our work buddy is being productive, we may naturally model their behavior or ease into concentration simply by being in a focused environment.

Takeaway: Body doubling took off during COVID as people yearned to connect with others when working from home. By anchoring you to a task and to someone else, body doubling can spur motivation, provide accountability, and encourage productivity.

Bottom Line: Your double doesn’t have to be literally sitting right next to you. They can be in the same room or on a screen in a virtual work group. Even strangers working quietly in a library or cafe could be adequate body doubles for some.

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Quick Picks

Red Flag? — Can processed meat cause colon cancer?

Splish Splash — Why do fingers get wrinkly after swimming?

Strong Evidence — 2 hours of strength training could lower this disease risk.

Fridge Raid — Is it safe to eat cold leftovers?

Under Pressure — This is how poor sleep impacts your blood pressure.

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What We're Cooking

Puerto Rican Chicken Skewers With Guava BBQ Sauce

Grilled meat skewers glazed with barbecue sauce, served with toasted bread and beer in a casual dining setting.

Courtesy: Food52

Serves: 6 | Cook Time: 25 minutes

These grilled chicken skewers bring a sweet, tangy spin to a classic summer cookout protein. Chicken thighs are marinated in citrus, sazón, and seasoning, then grilled until lightly charred and brushed with a sticky guava BBQ sauce. The sauce gets its depth from garlic, soy sauce, fish sauce, Sriracha, and chili-garlic paste, balancing the sweetness of guava with plenty of savory heat. Serve the skewers with crusty bread, rice, or a simple salad for an easy, flavor-packed meal.

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This, Not That

Buddy Boundabout

Three women walking along a waterfront path with mountains and city buildings in the background, under a bright sky.

THIS

Hands holding a smartphone with an orange case, resting on a wooden chair.

NOT THAT

Fellipe Ditadi/Unsplash, Valeriia Miller/Unsplash

This: A friend walk
Not That: Another “we should catch up soon” text

Turn catching up into a walk when possible. It gives the conversation somewhere to go — literally — and adds movement without making it feel like exercise.

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The Inflammation Conversation Is Getting Smarter

Inflammation is everywhere in wellness right now, and polyphenols are one reason. Happy Being makes them easier to sip daily with white tea, turmeric, and vitamin C, plus full ingredient amounts printed right on the can. It has 20 calories, 3 grams of natural sugar, nothing artificial, and 4,000+ 5-star reviews.

And right now, our readers can get 20% off with code ALLHEALTHY.

See Why People Love It

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HEALTHY HABIT

Start With a Glass

Drink a glass of water before your first caffeinated drink. It’s not glamorous, but it’s an easy way to begin the day with one small win before coffee takes the wheel.

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Final Thought

Majestic rocky mountain towering over lush green hills under a cloudy sky.

Every man’s death is standing in for every other. And since death comes to all there is no way to abate the fear of it except to love the man who stands for us.”

– Cormac McCarthy, Cities of the Plain

Alin Gavriliuc/Unsplash