Few flying cars and no fountains of youth: Since 2000 many old science goals have remained as far away as ET's signals
Once believed to be the smallest pathogens known, nanobacteria have now proved to be something almost as strange. They do play a role in health—just not the one originally thought
Despite questions, AIDS vaccine trial in Thailand spreads optimism
The poorest people are not only poor. They are also chronically sick, making it harder for them to escape poverty. A new global initiative may break the vicious cycle
ScientificAmerican.com 's David Biello is in Copenhagen at the climate conference, and he'll tell us what's going on there. And the Wildlife Conservation Society's Steven Sanderson discusses his Foreign Affairs article, "Where the Wild Things Were," worldwide conservation and the Everglades...
Contrary to popular melodramas and musicals, orphanages in many countries seem to take care of abandoned children just as well as adoptive homes
White-nose syndrome continues to baffle
The human body has more microbial than human cells, but this rich diversity of micro-helpers that has evolved along with us is undergoing a rapid shift--one that may have very macro health consequences...
It's not just obesity--more evidence links inflammation with type 2 diabetes
Drugs that are specific to hepatitis C will soon go from trial to clinic, giving more patients hope, but a vaccine is still elusive
A study in the journal Science finds that the gene for anemia-causing G6PD deficiency also protects against malaria, thereby keeping the gene active in populations. Cynthia Graber reports...
Many people living with HIV report having memory loss or other cognitive problems that can sound a lot like early-onset Alzheimer's disease. Unlike their senior counterparts, however, cognitively impaired people with HIV are often in their 40s and 50s—and the early decline can make it difficult to hold jobs and maintain personal lives...
Letters to the editor: Neandertals; GM Crops
The new advice could make three to five million more people eligible to take antiretroviral drugs
Smokers inhale live bacteria into their lungs, which could add to the reasons why they contract so many infections and chronic diseases, scientists say
A study in the journal Environmental Health Perspectives finds that cigarettes harbor various species of bacteria, some of which cause disease. Karen Hopkin reports
Are "elite controllers" the key to understanding HIV infection—and do their immune systems offer a new approach to developing an AIDS vaccine?
Although increased worldwide travel and the rising popularity of second-hand goods may contribute to bedbugs' resurgence, the most likely reason is the rejection of DDT and other harsh chlorinated hydrocarbon insecticides...
Despite questions, the Thailand trial spreads optimism