Blogs
Experiencing the Oscillometric Method through Numbers: From Pulse Wave Data to Blood Pressure Measurements
We re-experience the blood pressure calculation process of the oscillometric method through specific pulse wave data and numerical simulations. You can visually understand everything with interactive charts, from normal measurement to fixed ratio method calculation demonstration, pseudohypertension due to arteriosclerosis, cuff size mismatch, and the difference between wrist and upper arm types.
March 8, 2026
What is the Blood Pressure Monitor Sensor Looking At? How 'Amplitude' is Extracted from a Single Pulse
The 'amplitude data' forms the basis of calculating blood pressure using the oscillometric method. What kind of micro hemodynamics occur during a single beat, and what digital signal processing extracts that single numerical value? We comprehensively dissect the process from raw data to Peak-to-Peak amplitude.
March 8, 2026
A Deep Dive into Korotkoff Sounds: How Are Systolic and Diastolic Blood Pressures Measured? The Foundation, Evolution, and Historical Reach of the Auscultatory Method
The auscultatory method discovered by Russian military physician Korotkoff in 1905. Why did it become possible to measure both systolic and diastolic blood pressures? We delve into the physical foundation of turbulent and laminar flow, the motivation for the discovery on the battlefield, and its widespread adoption as a global standard.
March 7, 2026
Oscillometric Method Deep Dive: How Electronic Blood Pressure Monitors Were Born, What They Measure, and Their Limitations
Why did the shift from the auscultatory method to electronic blood pressure monitors occur? We dive deep into the history of the oscillometric method starting from Marey in 1876, the principles of the algorithms that calculate blood pressure values, the validation standards that guarantee accuracy, and the measurement limitations caused by structural and functional changes such as arrhythmias, arteriosclerosis, and heart failure.
March 7, 2026
The Journey of Measuring Blood Pressure: Why Did Humanity Try to Measure Blood Pressure? From Trial and Error to Global Adoption and the Evolution of Hypertension Standards
From the first experiment of inserting a glass tube into a horse's neck to mercury sphygmomanometers, electronic blood pressure monitors, and the spread of home blood pressure measurement. Tracing the history of blood pressure measurement in Japan and the world, and the evolution of hypertension standards.
March 1, 2026
How Much Can Diet Rejuvenate Your Blood Vessels?: The Damage of 'Bad Diets' and the Vascular Regeneration Roadmap with DASH and Fruits
'Today's lunch' determines your vascular health hours later. This article quantitatively explains the damage caused by high-fat and high-salt meals, and introduces the 'DASH Diet' and 'Power Fruits' to reset this damage, along with a concrete timeline for improvement.
February 17, 2026
The Beneficial Relationship Between Exercise and Blood Vessels: Why Does Light Exercise Lower Blood Pressure?
We are often told that 'exercise is good for the body,' but what exactly happens inside our blood vessels? We explain why even light daily movement, not just intense sports, can drastically rejuvenate your blood vessels through the mechanism of endothelial function and 'shear stress'.
February 16, 2026
Journey to Understand Blood Vessels and Flow: From Ancient Pulse Diagnosis to Modern Functional Diagnostics
From the Ancient Egyptian 'Ebers Papyrus' to modern AI personalized medicine. How has humanity perceived blood vessels and what have they tried to measure? Unraveling the history and future of vascular medicine.
February 14, 2026
The Pros and Cons of Antioxidant Cocktails: Synergy and the Science of 'Mixing Danger'
Antioxidant cocktails: combining multiple antioxidants can double the benefits through synergy, but depending on the combination and conditions, it can also risk promoting oxidation (pro-oxidant effects). We explain based on the latest findings.
February 11, 2026
The History of Antioxidants and the 'Next Generation': Why Do New Ingredients Keep Emerging?
A historical overview of antioxidants, from vitamins to polyphenols and flavangenol. Why do new 'super antioxidants' keep appearing? Explaining the scientific and industrial background.
February 7, 2026