Good Night?
Discoveries about narcolepsy could one day enable people to control when, and how deeply, they sleep and when they stay alert.

Leave and Learn
An interlude away from the lab was just what the doctor ordered for these accomplished researchers.

Leptin's Legacy
Once touted as a possible cure for obesity, the hormone leptin has led to a focus on the biology of obesity—and to treatments for two rare diseases.

The War on Malaria
Decades of work to develop a vaccine against malaria, and there is still no way to prevent this complex killer. With new approaches, however, excited researchers claim solutions may be in sight.

Two Roads to Cell Death
Can cancer cells be reset to respond to suicide signals?