What's the Best Aerobics Training?

[Lady Fan]

I haven't seen that one yet..not even sure if you could buy it here in Australia,I think this one is a sexy female perfume.

Okay, nice.

[Mathiaz]

for me its stair running .. its a real high intenseity workout .. after about 5-10 minutes you will be puffing like you just ran 20 miles :-)

i used to run 3 miles .. then i decided to try stair running ( at my house there is 50 steps stairs from down floor to the roof ) i run 50 stairs 10 times .. planing to increas to 25 times

and i got to tell ya i ve seen great benefits :

1- my cardio + endurance + stamina went up like crazy
2- i breath easily in fights ( i used to breath hard after 5 rounds .. and now i can go 5 rounds easily )
3- my legs dont get tired when i fight 15 rounds .. they become like a tree trunk

I'm curious, how days out of the week do you run stairs?