[Bytsi]

I can't tell you the "right" amount - I was under the impression that it's very stressful for your body to do HIIT more than 3 days/week BUT sometimes we need to stress our bodies for a short period of time while working towards a specific goal...

I do HIIT 2-3 times/week - mostly it depends on my schedule and if I can fit it in, but I would love to consistently get in 3/week. If I have to choose between lifting and HIIT though, the lifting always comes first.