whast better, running a mile in say a good 6 some odd minutes or biking for an hour. running is boring i have to say. biking is fun. i can bike forever, literally i dont get tired biking. but i can feel my heart rate going faster. it seems to have a low intensity on my joints, unlike pounding the pavement while running. theres no way im gonna run over riding my regular bike, but are theyre any benefits over running than biking? i dont mountain bike either, i just got my regular sport bike. so..yeah please tell me what i want to hear also, i live in texas, im 16 yrs old, any information on like how i could get into some marathons for you know, those breast cancer things or whatever that would be great. i would ride across texas and back for a good cause.