So your son is at an age where he is chomping at the bit to play a team sport -- like baseball, football, basketball, soccer or hockey -- and you're wondering if this is a good idea.  What do you do?

Here's what you do:  you let him. There's actually evidence that supports that instead of these activities being harmful, they might actually be beneficial to your child.

Not only can your child learn some life's lessons by participating in sports, he will strengthen his heart and...