A player of mine is playing a Mindchemist and he brought up a question to me that I could not answer so wanted to hit up people here. When he uses the Cognatogen he gains a +2 to Int and a -2 to Str when it wears off thought it states that the Strength loss turns to Stat Damage and must be healed in anyway that would heal Stats. This is different from the normal Mutagen which is not stat damage. So why the change to the Mindchemist? I couldn't see anything that should warrant that, so anyone have thoughts on this?