Chrissie Giles is editor of Mosaic, a magazine exploring the science of life published by the Wellcome Trust.  She has written ‘Breaking bad news’, which looks at the practical, emotional and professional challenges doctors face when telling patients that they are seriously ill. In ‘How we became the heaviest drinkers in a century’, Chrissie trawls her teenage diaries and speaks to alcohol experts to try and understand why she was part of the UK generation that reached ‘Peak Booze’.