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New research has identified a type of bacteria found in the microbiomes of elite athletes that contributes to improved capacity for exercise. These bacteria, members of the genus Veillonella, are not found in the guts of sedentary people.

By taking a closer look at the bacteria, the researchers from Joslin Diabetes Center determined Veillonella metabolizes produced by and converts it into propionate, a short chain fatty acid. The then utilizes that propionate to improve exercise capacity. The results were reported today in Nature Medicine.

“Having increased exercise capacity is a strong predictor of overall health and protection against cardiovascular disease, diabetes, and overall longevity,” says Aleksandar D. Kostic Ph.D., TITLE., a co-author on the paper. “What we envision is a probiotic supplement that people can take that will increase their ability to do meaningful exercise and therefore protect them against chronic diseases including diabetes.”

By Timothy Revell

They say 10,000 hours makes an expert, but for video-game playing AIs much more is needed. After playing thousands of years’ worth of the video game Dota 2, artificial intelligence is now able to beat the world’s top amateurs.

Dota 2 is a multiplayer battle arena game. Two teams of five take on each other across a large map, defending their own base whilst trying to attack their opponents. It is the game that has the largest prize money of any e-sport, so there are many professional players able to play at a very high level.

More than a half-century ago, the ‘cognitive revolution’, with the influential tenet ‘cognition is computation’, launched the investigation of the mind through a multidisciplinary endeavour called cognitive science. Despite significant diversity of views regarding its definition and intended scope, this new science, explicitly named in the singular, was meant to have a cohesive subject matter, complementary methods and integrated theories. Multiple signs, however, suggest that over time the prospect of an integrated cohesive science has not materialized. Here we investigate the status of the field in a data-informed manner, focusing on four indicators, two bibliometric and two socio-institutional. These indicators consistently show that the devised multi-disciplinary program failed to transition to a mature inter-disciplinary coherent field. Bibliometrically, the field has been largely subsumed by (cognitive) psychology, and educationally, it exhibits a striking lack of curricular consensus, raising questions about the future of the cognitive science enterprise.

While this general estimate that the global population should peak at under 11 billion is better news than some earlier higher estimates that it would reach as high as 15 billion by the end of the century, the researchers behind the study suggest the vast majority of population growth coming over the course of this century will occur in the world’s poorest countries.

In a groundbreaking treatment, cancer patients’ immune systems are being genetically reprogrammed to fight their terminal cancer for them, with promising results.

In the UK, a number of National Health Service (NHS) patients with lymphoma at King’s College Hospital have been given CAR-T, a “living drug” that is unique to each patient as it contains some of their own cells.