What's the difference between human lens and portrait lens?

The so-called human nature can be understood as a story and a scene. It needs a relatively wide viewing angle to accommodate more elements. So you need a lens with a shorter focal length, such as 35mm.

As for portraits, that is to shoot a person. Because the viewing angle is narrow, the focal length can be longer, for example, 50 mm

But look carefully, in fact, 35mm can also shoot portraits, and 50mm can also shoot humanities ... There is no essential difference between the two. Just because the lens of a focus segment is used too much, it becomes a special lens for that theme. ...