Last Thursday GIMM took over the Lisbon Book Fair with an interesting talk about diet, metabolism, and fertility. The session, by Zita Carvalho Santos, and moderated by Helena Pinheiro, spiced up the audience for the other talks to come on this next weekend. On Saturday it was the turn of Gabriel Martins, from the Advanced Microscopy, to add a little science to the Gradiva stands, and bring light and fluorescence to the fair visitors.