Exercise in a Pill? (May 2007) Not quite. But toying with metabolism's machinery might lead to obesity-fighting drugs that bolster the effects of a workout.
Cover Story:Force Factor
Borrowing tricks from physics, biologists are getting a handle on the minimachines that provide push and pull inside living cells.
An Intentional Life
A hands-on scientist with a clear vision, Art Horwich lets nothing stand in the way of his mission.
Raising Their Game
Science and math teachers need to be relentless learners to keep up with the science and effective teaching principles.
Where Does It Hurt?
Researchers are getting to the molecular details of pain's circuitry to answer the question with real specificity.
