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Unlocking the Secrets of Longevity Genes

A handful of genes that control the body's defenses during hard times can also dramatically improve health and prolong life in diverse organisms. Understanding how they work may reveal the keys to extending human life span while banishing diseases of old age

By David A. Sinclair and Lenny Guarente

The Serious Search for an Antiaging Pill

In government laboratories and elsewhere, scientists are seeking a drug able to prolong life and youthful vigor. Studies of calorie restriction are showing the way

By Donald K. Ingram, George S. Roth and Mark A. Lane

Seeds of Concern

Are genetically modified crops an environmental dream come true or a disaster in the making? Scientists are looking for answers

By Kathryn Brown

Rebuilding the Food Pyramid

Dietary guides introduced in 1992 and 2005 have led people astray. Some fats are healthy for the heart, and many carbohydrates clearly are not

By Meir J. Stampfer and Walter C. Willett

Obesity: An Overblown Epidemic?

Dissenting researchers accuse government and medical authorities--as well as the media--of misleading the public about the health consequences of rising body weights

By W. Wayt Gibbs

Edible Vaccines

One day children may get immunized by munching on foods instead of enduring shots. More important, food vaccines might save millions who now die for lack of access to traditional inoculants

By William H. R. Langridge

Calorie Restriction and Aging

Eating less--while maintaining adequate nutrition--is a recipe for longer life in many animals. Might it help humans as well?

By Richard Weindruch

Birth of the Modern Diet

Ever wonder why dessert is served after dinner? The origins of modern Western cooking can be traced to ideas about diet and nutrition that arose during the 17th century

By Rachel Laudan


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