cardio?

Ok I am reaching here. Don't forget I am layed up today and a bit bored, I don't want to sound stupid but biking is considerd cardio right?

Yup. That's why I started biking in the first place - I was tired of doing aerobics etc. Anything that raises your heart beat and gets you breathing hard is considered "cardio." Of course, you have to work at it hard enough to make it worthwhile.

Thank you!