MindWhy does time fly or drag? How emotions warp our temporal perceptions Felt time can speed up and slow down, depending on circumstances, because our perception of duration is intrinsically linked to the mental states induced by our physiological responses to the world Features
HumansAncient Britons rapidly evolved to cope with lack of sunlight The DNA of people who lived in Great Britain thousands of years ago has markers of natural selection at work – and the driving force seems to have been a shortage of vitamin D News