i brought a mmodifier in. people say they don't have enough time. i said 25 minutes. you have a modifier. i'm motivating you every step of the way. as soon as you start to get one muscle group depleted i switch to another muscle group. >> what is modify? >> if i'm doing crazy high jumps there's a modifier doing lesser jumps. >> lesser shawn t kind of. >> but you work your way up to another shawn t. >> the new story is the new fad everyone is working so hard you don't have to do an hour-long workout. what is a minimum as a workout and how many times a week to get reasonably fit? >> that's a good question because i'm a believer in the hour workout. removing the cardio and bringing it down to just weights you could work out 35 to 40 minutes. to get the cardio and weights in -- >> how many days a week would you recommend? >> five days a week. >> tracy said six.