Scientific Munchies

A Ken Burns iPad app, touchscreen subway maps, swapping sexism and more in our weekly look at the web

Even casual tokers know the drill: puff, puff, pass—the Doritos. As marijuana becomes even more mainstream, an interest in understanding all of its side effects is increasing too, and the latest to undergo a scientific investigation is pot’s curious ability to make users insatiably hungry. Researchers at French agency INSERM have worked with genetically modified mice to play around with CB1 receptors in nerve cells, which they’ve found directly stimulate the olfactory senses when activated, and in turn, increase hunger.