Per day? Per week? If you are really doing HIIT, it's pretty tough to do more than 30-35 minutes even if you are in shape. Remember, the exertion level is perceived by you. I generally tell clients who are healthy but need to lose weight to do HIIT 3 times a week and add one or two sessions of "regular" cardio. Are you doing any other exercise or just cardio?
Falling down is not failure....Failure is staying down.
Save the Earth, it's the only planet with chocolate and wine.
It isn't about waiting for the storm to pass...
It's about learning to dance in the rain.
9 years at or under goal weight!
Working Maintenance Everyday