Jeremy
I enjoy rollerblading, soccer, baseball because when I go rollerblading I can race and do cool tricks that can improve my practice for rollerblading, when I play soccer I like to run faster so I can catch a cool breeze, meanwhile I am also closer to getting the ball from the defender, I also enjoy baseball because I like when the ball pounds into my glove when I'm catcher, and when that ball flies off my bat my hands excel into the air.
When I am active I try to get my heart rate to my target.
Here is how I found my target heart rate.