Researchers have built a simulation to show how cancerous tumors manipulate blood-vessel growth for their own benefit.

Like all cells, those in tumors need access to the body's fine network of blood vessels to bring them oxygen and carry away waste. Tumors have learned to game the process called angiogenesis in which new vessels sprout from existing ones, like branches from a tree.

But some details have been hidden until now.

New research at Rice University shows how tumors create chaos in the development of neighboring blood vessels, causing them to grow too quickly and not form properly. Credit: Marcelo Boareto/Rice University

Even a short period of inactivity can be extremely bad for our bones, and for astronauts facing months in zero gravity, the risks are serious.

But there is an animal that has already solved all of the problems faced by immobile humans - black bears who hibernate for six months at a time. 

Blind cavefish that have adapted to annual cycles of starvation and binge-eating have mutations in the gene MC4R, the same gene that is mutated in certain obese people with insatiable appetites, according to a new study in PNAS which reveals more about how vertebrates evolved to have different metabolisms from one another and could provide insights into the relationship between human obesity and disease.

As the name suggests, Mexican cavefish live in dark, isolated caves in northeastern Mexico. In the hundreds of thousands of years since they were separated from their surface-dwelling cousins, they have adapted to their harsh environment in several ways.

The Natural Resources Defense Council (NRDC) is making $100 million per year scaring people about food and other science. It isn't helping the public be any safer, it is just making people enjoy food less, according to a new study.

New research finds that high vitamin C concentrations in the blood from the intake of fruit and vegetables are associated with a reduced risk of cardiovascular disease and early death.

Fruit and vegetables are healthy, we all know that, and the new paper by scholars from the University of Copenhagen and Herlev and Gentofte Hospital says that the risk of cardiovascular disease and early death falls with a high intake of fruit and vegetables, and that this may be due to vitamin C. 

A study carried out by researchers from Robotics and Cybernetics Research Group (RobCib) at Centre for Automation and Robotics (CAR) has used a drone to measure the temperature, humidity, luminosity and carbon dioxide concentration in a greenhouse.

The capacity of an aerial vehicle to move in three-dimensional space and the possibility to place the sensor at any point have clear advantages compared to other alternatives such as the sensor networks. Thus, the use of this technology can help improve the climate control systems and monitor crops. Greenhouse farming has suitable soils to apply new technologies.