Ever wonder how baseball players like Mark McGuire and Barry Bonds can line up and hit all those home runs with superhuman effort? In a way, maybe they are superhuman, since the products used to greatly enhance those home run-hitting abilities really don't put them on the same playing field as those that don't.

Steroids, which can boost muscle mass by 10 percent (sometimes more) can boost the home run percentage of batters by more than 50 percent, according to a U.S. physicist.

Notice it did not take a medical expert to say that, but a scientist who studied the relationship between muscle mass and the speed of one's baseball bat swing. Result: that ball's speed can be much faster as it leaves the bat due to the faster swing caused by the greater muscle mass.

That takes all the fun out of sports equality, though -- right? Or is that a concept that no longer has any meaning?