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This is from Coach on King. How often should Zone 5 cardio work be done a week? Is there a point that's too far?

Okay. So how much Zone 5, what is zone five cardio and like how much should be done?

All the zones are arbitrary.

There is no like consensus agreement on what is zone one, zone two, zone three, zone four, zone five.

Whether or not we should use a five zone model versus three.

There's some authors talk about an eight zone model.

The best way I can describe this if you're not familiar with this five zone model or maybe

not as familiar as you want to be is that zones one and zone two are below the sort of aerobic threshold where you are working out intensely enough for your body's creating a bunch of lactate.

That is above baseline.

Once you get past that, we're talking like 70 to 80 percent max heart rate.

Now you're into zone 3 and zone 4 above that.

You're creating some lactate,

but the body is generally good at dealing with it for, you know, extended periods of time,

top of zone four you can probably do for maybe up to an hour, some more trained people a little

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