Definition
Elastin is a protein in your body that makes tissues and organs stretchy. Think of it like the rubber bands in your skin, lungs, and arteries. It allows them to stretch and snap back to their original shape. Without elastin, things would sag and not work as well. Imagine trying to blow up a balloon without any elasticity – it wouldn't inflate properly! Elastin ensures flexibility. Unlike collagen, which provides strength, elastin focuses on stretchiness. It's what gives youthful skin its bounce.