Word: guts
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...linear—there are a lot of jagged edges and detours along the way,” Power said after the speech. “You can’t script what you do with your law degree. You just have to listen to what your gut is telling...
There are a lot of things I will remember about that moment. The weight of his hand on my shoulder, the light. The feeling of knots, untangling in my gut...
...more fundamental question, then, is, What causes changes in gut microbiota? Many things, says Gewirtz, including the use of antibiotics, cleaner water and improved sanitation and hygiene in general, which influences the type and amount of microbes that reside in the intestines. In the current study, scientists found that in TLR5-deficient animals, the total percentage of 150 species of bacteria in the gut was three to four times higher than in normal mice, while 125 other types of bacteria were less common. "We don't have a sense of which is more important yet - that some of those species...
Studying those changes is the next step for scientists like Gewirtz who want to understand the precise link between intestinal microbiota and obesity. An important part of that investigation will involve having an accurate map of the genetic makeup of those gut bugs. And in a separate paper published Wednesday in Nature, an international group of scientists generated the most comprehensive genetic map to date of human gut microbes, using 124 human fecal samples, which gives scientists just the critical window they need to figure out which species of bugs tend to reside in our intestines and which may contribute...
While Gewirtz's latest findings are limited to mice, experts believe they may be just as applicable to humans; previous work on gut microbiota has found that obese individuals tend to have a makeup of pathogens in their intestines different from that of people who are of normal weight. "Our results suggest that the tendency to eat more may not only be driven by the fact that food is cheaper and more available, but by a change in the bacteria in the intestines," he says. "People may be eating too much because their appetite is stronger...