SAGE Crossroads
A Longevity Diet That's Easy to Stomach
Monday, June 13, 2005
By R. John Davenport
Slashing calories by one-third extends the lives of rodents, but adhering to the harsh diet would be difficult for people. Now researchers find that mice live longer when they ingest less of only one nutrient, suggesting that less-extreme measures also fend off mortality.
Special Treatment
Monday, June 06, 2005
By R. John Davenport
Studies of men guide many medical therapies for women, but diseases often hit the sexes unequally. New efforts to tease apart physiological differences between the sexes promise to improve health care for women--and for men.
Playing With Fire
Monday, January 31, 2005
By R. John Davenport
Doctors often prescribe hormone therapy for elderly patients with listless thyroid glands. However, such treatments could shorten the lives of those with mild thyroid deficiencies, new results suggest.
Growing Pains
Monday, August 23, 2004
By R. John Davenport
Growth hormone therapy turns back the years, say its advocates, but animal studies suggest that a dearth of the hormone--not a surplus--extends life.
Proving Grounds
Monday, June 21, 2004
By R. John Davenport
Research on people helps shape medical care, but not all human studies are alike. Understanding the strengths and weaknesses of the different types of investigations helps researchers, doctors, and the public weigh the evidence for promising treatments.
Test Patterns
Monday, April 19, 2004
By R. John Davenport
Older people take the majority of prescription drugs, yet they are frequently excluded from the studies that test drugs' safety and effectiveness. Scientists and doctors are examining why they're left out and devising ways to include them.