A putative antiaging drug takes a step from mice to men

November 15, 2013

The drug rapamycin lengthens lifespan in mice, but a paper published earlier this year questioned whether it slows aging in the animals. This week a new study comes to rapamycin’s defense. Meanwhile, researchers have begun a clinical trial to test whether the drug can improve the mental acuity and physical condition of elderly humans. (Science, by subscription only)