Why former pro football players may cry or laugh uncontrollably with little to no clear trigger [Infographic]

(BPT) - New research shows 99 percent of former professional football players surveyed by the Gridiron Greats Assistance Fund, Inc., have suffered a head injury, repeated concussions, or a blow to the head sometime during their football career. More concerning is that a third of these players admit to experiencing symptoms consistent with a little-known neurological condition caused by brain injury called PseudoBulbar Affect (PBA).