Clamp skin stretch scaling at 45 years old. I'm not convinced about the...

Clamp skin stretch scaling at 45 years old.  I'm not convinced about the utility of elasticity in this application, but at least we can prevent total calcification of elderly slaves, which is clearly wrong.

js/medicine/utility.js

@@ -29,7 +29,7 @@ App.Medicine.pocketVolume = function() {
 		// now the current skin area:
 		const A = Math.PI * (a * a + h * h);
 
-		const skinStretchFactor = linearInterpolation(Math.max(slave.physicalAge, 13), 13, 1.5, 45, 1.15);
+		const skinStretchFactor = linearInterpolation(Math.clamp(slave.physicalAge, 13, 45), 13, 1.5, 45, 1.15);
 
 		const hMax = Math.sqrt(A * skinStretchFactor / Math.PI - a * a);
 		const VMax = Math.PI / 6 * hMax * (3 * a * a + hMax * hMax);