A circulatory system (sometimes cardiovascular system) is an organ system that moves substances to and from cells; it can also help stabilize body temperature and pH (part of homeostasis). There are ...

Aminoacyl tRNA synthetases picked up new protein domains that participate in vasculature formation around the same time that organisms evolved key adaptations in the circulatory system. A series of ...

Scientists have long known about the anomalous "warming hole" in the North Atlantic Ocean, an area immune to warming of Earth's oceans. This cool zone in the North Atlantic Ocean appears to be ...

New research provides evidence that a key cog in the global ocean circulation system hasn't been running at peak strength since the mid-1800s and is currently at its weakest point in the past 1,600 ...

Poor circulation in the legs affects millions of people worldwide, causing uncomfortable symptoms like cramping, swelling, numbness, and fatigue. While many factors contribute to circulation problems, ...

Breathing in polluted air could lead to toxic particles being transported from lungs to brain, via the bloodstream—potentially contributing to brain disorders and neurological damage, a new study ...

For once, the Greeks had no word for it: they neither understood nor named the body’s system of glands and connecting channels through which colorless fluids flow. The Romans did coin a name, but for ...

In Bergen, Maaike Zwier analyzed pollen in sediment cores from lakes on Kerguelen Islands and South Georgia. In this way, she can say something about the local climate going back almost 12,000 years.