As anyone who has ever struggled to keep his or her eyes open after a big meal knows, eating can induce sleepiness. New research in fruit flies suggests that, conversely, being hungry may provide a way to stay awake without feeling groggy or mentally challenged.
How well do you know your margarine history? Let’s take a look at the origins of the butter substitute, and the dairy lobby’s attempts to defeat it.
A study by a German military think tank has analyzed how “peak oil” might change the global economy. The internal draft document — leaked on the Internet — shows for the first time how carefully the German government has considered a potential energy crisis.