Originally posted by Rob NeyerIn 2009, exactly 1,156 players played in at least one major league game. So slightly more than nine percent of all major leaguers were granted the "therapeutic use" exemption.
Is that a lot? Well, it's hard to say, because ADHD might be under- or over-diagnosed, depending on who you talk to. This source will say only that ADHD occurs in "3-10% of the general population," which just happens to give MLB (and the MLBPA) just the wiggle room they need to avoid a Congressional inquiry.