Health Hub

Heart Health

Everything we have written on heart health. What the evidence supports, and what to do with it.

Age-Related Muscle Loss After 40: Why It Happens and How to Fight It

From your forties, muscle slips away at about one percent a year. What drives it, what speeds it up, and the training that holds it back.

Heart Health2 Dec 2025
Salt Sensitivity and Blood Pressure: What You Should Know
Two people eat the same salty meal and only one sees a jump. That gap is salt sensitivity, and it decides what cutting back will do for you.
Heart Health2 Dec 2025
VO₂ Max and Lifespan: The Powerful Link Between Fitness and Mortality
VO₂ max predicts how long people live better than almost anything else we measure, yet it rarely reaches a medical form. What it is.
Heart Health23 Oct 2025
The Forgotten Factor: How Sleep and Stress Quietly Shape Your Heart
Short nights and constant pressure keep your heart working when it should be resting. What the research shows, and how to let it settle.
Heart Health23 Oct 2025
The Silent Connection: How Metabolic Health Shapes Your Heart Future
Feeling fine says less than you would hope. How blood sugar, weight and blood pressure shape your heart long before anything shows up.

Cento focuses on what actually moves your number. How the reading was taken. Whether your monitor and cuff are right. The daily habits behind it all.