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A blood protein can flag dementia risk decades before symptoms appear

Forgetting the name of a loved one may be one of the first signs people notice of dementia, but it's rarely the first warning sign your brain gives. Changes in the brain that lead to neurodegenerative diseases like Alzheimer's and dementia start showing up decades before symptoms

Admin Recifes 15/07/2026 1

Food noise: Why thoughts about eating aren't always something to be feared

When you're hungry, it's normal to find yourself thinking about what you're going to eat next. O recorte ajuda a contextualizar a pauta dentro de Fitness.

Admin Recifes 15/07/2026 0

Consciousness: How 'working memory' may mysteriously give rise to it

You know that feeling when you walk into a room and immediately forget why you came in? Maybe you were there to fetch your keys. On your way to the room, you were thinking about grabbing your keys. But once you arrive, your keys have completely disappeared from your mind.

Admin Recifes 15/07/2026 0

Your dominant hand is made, not born, experiments suggest

Most people favor one hand, and that hand tends to be the better one for writing, throwing and managing chopsticks. The long-standing view is that the dominant hand is "born" more capable, its skills rooted in a brain hemisphere specialized for motor control. A new study in PNAS

Admin Recifes 15/07/2026 1

Running on a treadmill is easier than running outside. Does that matter?

You hop on the treadmill, set your pace and easily knock out a couple of kilometers (about 1.2 miles). Then, a few days later, you head outside to run the same distance. You try to keep the same speed you did at the gym, but it destroys you.

Admin Recifes 15/07/2026 1

AI can be a personal trainer in your pocket—but is it safe?

Generative artificial intelligence (AI) is changing the fitness industry: People can now ask chatbots to write marathon plans, build gym programs and even adjust workouts based on sleep or heart rate data.

Admin Recifes 15/07/2026 1

Why does our mind wander? New study taps into the tricks of staying on task

You're sitting at your desk, writing a short story. You remain focused, but after several hours, you still can't see how to end it. So you go for a run, allowing your thoughts to run with you. Instead of stumbling on a rock, you fall on a solution.

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The circuit that lets your brain think and see

Nuttida Rungratsameetaweemana is challenging a story neuroscience has told for decades. According to the conventional account, our eyes collect raw information and relay it through a series of nerves and waystations that lead deep into the brain, eventually reaching the cortex. T

Admin Recifes 15/07/2026 1

Extreme heat is rising—and so is the risk to your heart

As summer heat intensifies across the U.S., the American Heart Association is warning that soaring temperatures don't just make people uncomfortable—they can put serious strain on the heart and increase the risk of life-threatening complications.

Admin Recifes 15/07/2026 0

What is mild cognitive impairment? And does it always lead to dementia?

You've forgotten a few appointments lately, and you find yourself losing track of conversations. Close friends or family may have also noticed some changes in your memory or thinking.

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You can dream while you're awake. The boundary between wakefulness and sleep is a lot blur

Tonight, as you close your eyes in bed, something strange will happen to you: Your mind will drift from an ordinary thought to a dream, but it will be impossible to say exactly when it happened. We tend to imagine that the boundary between being asleep and awake is clear: When we

Admin Recifes 15/07/2026 0

Learning languages could net you a younger brain, study says

Is your teenager thinking about taking a Spanish or French class? Tell them there's a hidden benefit to picking up another language—their brain might age more slowly, a new study says.

Admin Recifes 15/07/2026 0

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