results. How could 3 studies be added up? They are contradictory in conclusion. The author of article even doesn't have a science degree. He is B.A. in science writing, that is bachelor of arts. He certainly has skills of arts to mess up scientific studies. How could a person write about science without learning science in first place? Perhaps only woke universities allow it.
As usual you posted and linked something that you don't really understand, perhaps never carefully read it.