Its really a totally different kind of hit though. Rugby tackles tend to be at sharp angles or from behind while football is often heads up direct or nearly so.

Its really a totally different kind of hit though. Rugby tackles tend to be at sharp angles or from behind while football is often heads up direct or nearly so. But even so, studies seem to show that its the constant impacts from blocking on the line, something rugby doesn't allow, that is a large contributor to the mental problems developed later in life. Honestly I think facemasks are the biggest problem with the equipment and contributing to problems with it.