A to Z Health Guide 2007

A - F
NIAMH BALDOCK / ALAMY

Baby Einstein

Article Tools

The skill-building claims of DVD programs like Brainy Baby and Baby Einstein are plain from their titles, but the products may not be delivering. University of Washington researchers found that infants who watched programs with rapidly moving images accompanied by music — common in the videos — learned six to eight fewer words than other babies their age. Language skills are best learned, say experts, when babies interact directly with speakers.

Science

What Makes Us Moral

Morality and empathy are writ deep in our genes. Alas, so are savagery and bloodlust. Science is now learning what makes us both noble and terrible—and perhaps what can make us better

Interactive

The Morality Quiz

Here are some of the dilemmas used to study human morality. Take this quiz to see how you compare to other TIME.com readers

A-F

From Autism to Flu

G-M

From Gardasil to Migraines

N-S

From Naps to Suicide

T-Z

From Tuberculosis to Zoledronic Acid