Health - Time.com

The popular belief that testosterone contributes to aggressive behavior in humans may be just that -- a belief, all in your mind Full Story »

Climate Change Talks in Copenhagen Enter a Deep Freeze Full Story »

Diplomats in Copenhagen could use a helpful shove in the right direction -- and some of that force could come from a corporate sector that was once dead set against climate action Full Story »

Negotiators in Copenhagen are holding out hope that newly arriving world leaders will bridge the gap between rich and poor nations, and seal a climate deal -- or something close to one Full Story »

French vintners are warning that climate change could have a ruinous effect on their grape harvests. Already, some are packing up and moving to -- gasp -- England Full Story »

Studies on the effect of soy on breast-cancer recurrence and mortality have been conflicting, but the largest study to date suggests that it may be safe, and even beneficial Full Story »

Teens who talk to their parents about sex are more likely to delay sex and to practice safe sex when they do become sexually active, but parents are waiting too long to have the talk Full Story »

Market-based mechanisms for reducing greenhouse-gas emissions aresubsidizing some of the world's worst polluters, critics say Full Story »

In a move long awaited by stem-cell researchers, the National Institutes of Health finally made available the first 13 new stem-cell lines eligible for federally funded study Full Story »

Research suggests that exposure to certain stimuli during sleep may help people remember things they learned while they were awake Full Story »