Monkeys on an extremely low-calorie diet are healthier–and hungrier.
Pharmacogenomics promises to let doctors choose drugs and dosages based on tests of your genetic profile. But just try taking a test.
Surveillance gizmos are a part of my life. What do they reveal?
On MySpace, you can be friends with Burger King. This is social networking?
The recently discovered role of small RNAs could mean new drugs and a new understanding of fundamental biology.
Photonic crystals may finally make all-optical signal processing a reality.
Special care must be taken when introducing computers to schools in developing countries.
Danny Hillis talks about the real-world challenges of creating artificially intelligent machines.
Where traditional magazines are better than the web.
Letters from our readers.