ok i am gonna do cardio about times a week.........i will be doing the bike,,,,,how long should i do it if my goal is to get ripped as possible......should i do it in te moring before i eat anything?......i did that today and i could not do it as log as i would if i had eaten.....what benefts doyou get if you do it wh en you wake up on a empty stomach?.....how many mins of biking should i do ? does anyone got a good number of calories that i should aim at.........im about 215 pounds trying to get to about 180 or 170