A new study reveals that soccer players who head the ball on a regular basis are three times more likely to display symptoms of concussions than players who do not head the ball.
If a player has a ball hit their head two or more times within a playing period of two weeks, then the risk spikes to six times more likely to develop concussion symptoms than those players whose heads only have unintentional contact with the ball.
READ STORY & see video at CNN.com
