Strength training is fundamental to most athletes' regimes, but the guidelines are overwhelmingly based on male data. An analysis of labelling on sports foods—things like protein shakes and bars—finds that the nutritional claims they make often don’t tally with the ingredients panel. Worry about memory loss is not uncommon, and not confined to an older age group, but measuring memory accurately needs refinement. Many Australians are prescribed opioids as relief for back pain, but the a world-first trial led by the University of Sydney found that opioids don't offer significant benefit and guidelines for their use need to be changed.