What questions about the milgram experiment did critics raise? how are today’s experiments restricted in regards to ethics?

Many questions were raised on the ethics of Milgram experiments such as about the participants were kept in an illusion that they are giving shocks to some real person rather than a confederate of Milgram.

Proper rights to withdraw from the experiment were not given to the participants rather only orders were given.

In today’s experiment, the participants are told what exactly are they going to do and they are given proper rights to withdraw themselves from the experiment.

yes, very unhealthy.