Scientists discover gut bacteria’s impact on human brain size. A Northwestern University study reveals a link between gut microbes and brain development. Researchers transferred primate gut bacteria into mice. Mice with human bacteria showed higher food consumption and lower weight gain. These mice also had elevated levels of specific bacterial metabolites. Scientists discover gut bacteria’s impact on human brain size. A Northwestern University study reveals a link between gut microbes and brain development. Researchers transferred primate gut bacteria into mice. Mice with human bacteria showed higher food consumption and lower weight gain. These mice also had elevated levels of specific bacterial metabolites. Health and Fitness, Health Tips, Exercises & Workout Tips, Diet & Wellness | Times of India Lifestyle