I believe that human touch is a necessity.
Speaking from experience, I know that, without physical touch, the mind and the body's health start to decrease.
I haven't been held in over two years. I can feel it. I can physically feel it. My heart in my chest actually hurt due to the longing to be held. The last few days, it's gotten exceptionally bad. To the point where I actually want to figure out how to force myself to hallucinate the feeling of someone holding me. I don't think that this is normal.
I'm not really sure what else I wanted to say, I just want people to realize that this is a real issue, and I think a lot of people experience it, a lot more than we realize.