Arginine and Circulation, the second part of the publication series Arginine and Health, discusses the role of the amino acid arginine in vasodilation and cell energy production and explains what these things have to do with feeling energetic and healthy in everyday life. This second part also explores how blood pressure affects health and puts right common misconceptions about arginine. To offer a comprehensive view, we will discuss arginines effects on circulation both from a scientific point of view and using case studies.We also discuss arginines benefits for people who actively exercise. Arginine and Health is a series of popular scientific publications that discusses the health effects of the amino acid arginine. The series offers easily understandable research-based information about the role of arginine in promoting good health without medicine. The series also explores the significance of arginine for various target groups. Jyrki Penttinen, MD, is responsible for the scientific content of the series. Penttinen has conducted medical research on arginine since the 1990s; the information in this publication series is based on a considerable number of peer-reviewed medical studies. Hannele Penttinen is responsible for the educational aspects of the publications. The Arginine and Health series does not endorse any specific arginine products, nor may it be used to promote any arginine supplements