Renin-angiotensin system, or RAS, is a physiological mechanism essential to human body function. The SARS-CoV-2 virus causes overactivation and malfunction of this system. The RAS regulates innate ...

A computer-generated image of red blood cells. Nitric oxide—known by the formula NO—is so vital for humans’ internal physiological processes that it was crowned Molecule of the Year in 1992. It plays ...

Folic acid, also known as vitamin B9, is an important B-vitamin with many vital functions in the human body. It was discovered in the early 1930s when an English scientist isolated a compound from ...