Nature Network - heart disease The latest taggings for heart disease http://network.nature.com/announcements en-us 40 Around town Neil Sheehy How London's buzz could kill you Jim McManus Research Roundup: Modeling marine microbes and tracking down trans fat in the body Research Roundup: A planet that’s lighter than water; a brain cancer “on” switch that’s shared by stem cells; and a nap a day keeps the heart attack away Research Roundup: This week’s papers from Boston labs