Parents only LET their kids play sports. Their coaches encourage them to play hard and often even after a head impact.

It is not the sport that is the cause. It is the way it is coached and applauded.

Shaking off a hard hit is encouraged, at least until now.

Statistics show that soccer is as dangerous to the brain as football, maybe even worse. There is an observable 10% decrease in IQ among soccer players who routinely head the ball. The research also shows that an infrequent corner kick header or such is not as damaging as a heading drill in practice where the ball is headed lightly but repeatedly.