Whose property is my body? Probably mine. I so regard it. If I experiment with it, who must be answerable? I, not the State. If I choose injudiciously, does the state die? Oh, no.
There are hundreds of thousands of microbes surrounding us, but they cannot harm us unless we become weak, until the body is ready and predisposed to receive them.
And although our bodies are bounded with skin, and we can differentiate between outside and inside, they cannot exist except in a certain kind of natural environment.