The advantages of the medical torture is that it enhances the interrogation techniques. It makes the prisoners lack sleep and under stress that helps them disclose certain information.

there were many types of torture, the most common was medical torture.

they were used as "guinea pigs" for experiments.

The newer forms of torture use medical procedures and drugs to produce intense physical pain and/or physiological distress without any continued effort.

The Nazis used both established tortures for that time and also created new ones. They experimented with medical torture, for example, which was very new then. The Nazis were probably were the first group to use sexual torture as routine standard practice.

Torture = Tormentum (noun) Torture = Torquere (verb, 'to torture')