How Biological Clocks Work
... Anyone who has traveled has experienced jet lag—that groggy realization that while your day is beginning in Washington, DC, the night you just left in San Francisco is hardly over. Jet lag is an inc...

Miracle Drugs vs. Superbugs
... Preserving The Usefulness Of Antibiotics by Tamar Nordenberg The historical scourge known as the bubonic plague killed up to one-third of Europe's population in the 1300s. But in modern times, it ...