Hold the salt: Gut reaction may impair the brains of mice

(NIH/National Institute of Neurological Disorders and Stroke) In a new mouse study, scientists link changes in the gut caused by a high-salt diet to impaired blood flow in the brain. This reduced blood flow can eventually lead to impaired cognition that could be reversed by changing back to a normal diet. The study, published in Nature Neuroscience, also provides molecular clues for treating these problems.