Follow this author to personalize your feed and get instant alerts. Follow Go to your personalized feed WHY FOLLOW? Smart Alerts: Get notified about major news as it happens. Only one in five women know that they're more likely to develop Alzheimer's disease than men, according to a recent survey. Maria Shriver wants that number to climb--and for women to start thinking about their brains decades before symptoms show up.

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This actor was told he had Alzheimer's, now he's performing a one-man show Image caption, Peter Marinker, who was diagnosed with Alzheimer's disease two years ago, began dress rehearsals for the Beckett play Krapp's Last Tape in June For four days running, Peter Marinker had arrived at rehearsals that were not even taking place. Dementia had muddled the dates in his mind. Yet he is now preparing to do something most actors would find daunting even with perfect recall: performing a much-loved Samuel Beckett play alone on a London stage. Marinker, 85, is best known for his voice work: from radio plays and video games to big-budget films like Labyrinth and Paddington in Peru. On camera he was the adviser to the US president in Love Actually and one of the airline passengers in the drama United 93.

Follow this author to personalize your feed and get instant alerts. Follow Go to your personalized feed WHY FOLLOW? Smart Alerts: Get notified about major news as it happens. It seems odd that your body's internal age may differ from your chronological one. But Tony Wyss-Coray, a Swiss professor of neurology and director of the Knight Initiative for Brain Resilience at Stanford University, has pioneered ways to measure a person's "biological age," which scientists say more accurately reflects how a body is aging than does chronological age.

Researchers found that a metabolite produced by gut bacteria can weaken the barrier that protects the brain and promote changes associated with the cognitive disease. For years, scientists have known that the gut microbiome of people with Alzheimer's differs from that of healthy people. What remains unclear is whether these differences are a consequence of the disease, contribute to it, or simply accompany it. It is possible that part of the puzzle lies not in the gut bacteria themselves but in the molecules they produce, which end up circulating throughout the body. A team of scientists believes it has found one such molecule.

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The lab will beam back data to train AI models to predict how proteins behind age-related diseases like Alzheimer's and certain cancers behave. Space is becoming the next frontier in longevity research. A British startup just launched self-run chemical experiments into orbit, in the hopes zero-gravity data might shine a light on a group of disease-causing proteins too difficult to study on Earth. But first they need to check their autonomous laboratory will work in space. Mass Balance's grapefruit-sized apparatus containing chemicals, sensors and control elements to keep the chemicals functioning launched on a SpaceX transporter on Tuesday morning.

How healthy is your brain? In our efforts to keep our brains healthy, how do we know what is working? It shouldn't have been difficult: 72 x 72. From the back seat, my daughter, newly confident in mental maths, wanted to check her answer. Whether it was because it was the end of the day, I was trying to park or something else, I stalled, cognitively speaking. Lately, though, I have had the sense that my brain isn't firing on all cylinders.

A large-scale clinical trial has shown that even long-term consumption of DHA--an omega-3 fatty acid found in abundance in oily fish--may not lead to improvements in cognitive function. Docosahexaenoic acid (DHA), an omega-3 fatty acid found in abundance in oily fish such as mackerel and sardines, is thought to improve cognitive function by supporting connections between brain cells. However, it has never been conclusively demonstrated that DHA taken as a dietary supplement actually reaches the brain or provides measurable benefits against dementia . Against this backdrop, a research team at the USC School of Medicine has published the results of a large, two-year clinical trial involving older adults at elevated risk of developing Alzheimer's disease . The study found that while high-dose DHA supplements do indeed reach the brain, they did not improve memory or cognitive function, nor did they slow brain atrophy.