Ideal bf:
-maximum anal squeeze pressure of 250+ mmHg and a resting pressure of 60
-Rectal wall mucosal thickness of 2.5 - 3 mm
-Internal sphincter thickness of. 2-3.5 mm
-45% danish + 50% west germanic
-Resting anorectal angle of 90-110Β°
- +3 years younger
-Long hair