Mind control is a favourite tool of science fiction writers, it allows us to make certain characters do things that they would normally never do without the hassle of explanation. But Hard-sciencehard science fiction worldbuilders (yes that's a thing) look for explanations for things even if it is not necessary; like the evolution of our creatures to the cultural belief'sbeliefs of our people.
Using things like but not limited to;to: biology, chemistry or technology -- how can I explain mind control without falling back on the overly used magic excuse?
What I mean by mind control is the ability for a person to be able to control the actions of another and the person being controlled is aware of what is happening.