Re:High and Low intensity Cardio PLEASE HELP!!
agree with the above, get away from only having the focus on cals in vs cals out. It's really where you get those calories and how you expend them that regulate a lot of the systems in the body.
Use a combination of interval type cardio and the long slow stuff. Don't overdo the high intensity stuff, balance this with how stressful your lifestyle is, the long slow stuff is great for recovery as well.
There isn't one best form of cardio, they all have different combinations of effects