Tag
#feedback
3 articles
Medicine
Hormones: The Body's Chemical Messengers
How hormones broadcast slow, body-wide chemical signals through the blood, why only cells with the right receptor respond, and how negative feedback keeps every level in range.
10 minJul 28, 2026
Medicine
Blood Pressure and Circulation
Why a blood-pressure reading has two numbers, how elastic arteries smooth a pulsing heart into steady flow, and why a fourth-power law makes tiny vessels the body's master control valves.
9 minJul 13, 2026
Medicine
Glucose and Insulin: A Feedback Loop
Blood glucose stays inside a startlingly narrow band whether you have just eaten or not eaten for a day. The reason is a negative feedback loop with a sensor, a controller, and an effector — and diabetes is what happens when different parts of that loop fail.
10 minJul 8, 2026