Many things have happened since the 80s; obesity as also shot up. In general people eat out more, eat fast food, and more simple carbohydrates. I think it would

Many things have happened since the 80s; obesity as also shot up. In general people eat out more, eat fast food, and more simple carbohydrates. I think it would be hard to pin this one on any particular one thing. I It’s also possible it isn’t one thing, but a confluence of factors.