What is it about cycling that makes me want to come home every evening and ride 15 miles? People ask me what is wrong with me, am I crazy, it's hot out there. I just tell them I love the way my lungs feel when the air is pumping thru them and the blood is flowing but I do have a hard time describing the experience to those who do not excercise or cycle. Do any of you have friends or relatives or spouses that think you are nuts for cycling so much?