Species in polar regions hard hit by climate change

Many species will become extinct as a consequence of global warming. This is the prediction of a mathematical model. The simulations show that climate change will have a particularly large impact on ecosystems in polar regions, mirroring changes that c…

Body clock off-schedule? Prebiotics may help

A new study suggests simple dietary compounds known as prebiotics, which serve as food for beneficial gut bacteria, could play an important role in helping us bounce back faster from jet lag, shift work or other sources of circadian rhythm disruption.