For crayfish at least, a more sociable life makes booze work quicker. When crayfish were put in water containing a little alcohol, the ones who had been kept on their own over the preceding week took longer to show signs of alcohol exposure – such as tail flips – than those who had been living with others of their kind. Read more in New Scientist.
Mouse study suggests that brain activity, not gut hormones, accounts for fibre’s weight-control action.
People have long been told that a diet high in fibre can help to fight obesity, but how it does so has been unclear. A study of mouse metabolism now suggests that a product of fibre fermentation may be directly affecting the hypothalamus, a region of the brain involved in regulating appetite. Read more in Nature.