Andrew Huberman· PhD
It's only about 10% of your total effort in any one exercise about that's going to give you this positive effect.
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The headline is broadly defensible, but the qualifications matter. Effect sizes vary by population, the strongest claims rest on shorter trials, and credible voices push back on how it's typically framed.
It's only about 10% of your total effort in any one exercise about that's going to give you this positive effect.
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And if you don't have enough of an incentive to exercise based on all the information out there about how it'll make you live longer and make your heart better, et cetera, here's a reason that regardless of what kind of exercise you do, if it's weight training, or running, or cycling, or swimming that every once in a while, about 10% of the time you should exercise to the point of intensity where you start to feel that so-called burn.
So, as I mentioned that burn is present from lack of oxygen being present. And then the hydrogen comes in and you get this lactate. But this process of lactate acting as a buffer of fuel and a positive hormonal signal for other tissues, occurs only if there's oxygen. So if you feel the burn, you definitely want to focus on your breathing at that point. That would be the time to take deep inhales and try and bring more oxygen into your system. It's definitely not a time to hold your breath.