Controversial new research casts doubt on the long-held belief that circumcision reduces sexual sensitivity for men who have undergone the procedure. Circumcision, a procedure performed throughout history — for reasons ranging from the fulfillment of a biblical covenant to a means of curbing masturbation — has received both praise by those who tout its supposed medical benefits and scorn from those who claim it has traumatic aftereffects. Now, in a Canadian study appearing in the most recent issue of the Journal of Sexual Medicine, researchers found that the glans, or head of the penis, is just as sensitive on a...