In a long-awaited ruling, the agency said that a salmon created to grow faster is fit for human consumption. Environmental and food safety groups vow to fight the decision.
A study of thousands of people, most in committed relationships, finds that having sex about once a week correlates best with happiness and well-being. More didn't turn out to be better.
Differences in the patterns of genes that are turned on in brains of people and mice suggest glial cells may have helped humans develop brains that can acquire language and solve complex problems.
Doctors were once unquestioned authorities on how aggressively to treat the sickest and most premature babies. Then parents started pushing back for more say. The responsibility can be excruciating.
Though 39 percent of the state's population is Latino, only 8 percent of its nurses are. Health officials are looking to reduce health disparities by increasing diversity among health professionals.
Outlawing more than a dozen cannabinoids — chemicals concocted in labs and sprayed on leaves to create this risky street drug — hasn't stopped the problem. Chemists just make new versions.
The number of U.S. women choosing long-acting, reversible birth control methods has more than quadrupled since 2002, data suggest. Use of the pill, condoms and female sterilization has dipped a bit.
The real complexity of flavor comes from a food or drink's aroma. But the main way we experience the full range of these compounds isn't by sniffing. It's by breathing evenly while we eat.
This week on Hidden Brain, researcher Katy Milkman explains why backup plans may make us less motivated, Dan Pink is back to discuss moral hazard, and NPR's Adam Cole ties it all together with a song.