I want to talk about a hidden source of heart attacks that you may have never even considered

before, but I think it's very, very common, not talked about enough. And since heart disease,

the number one killer on planet Earth, it might be a good idea for you to know more about this topic.

The unique thing about the heart muscle is that the heart muscle is different than the skeletal

muscles. It never has a chance to fully relax and recover. It's constantly beating 24-7,

whereas your other muscles can't have a chance to relax. They don't have to constantly work,

but that heart has to keep working. And when someone dies from heart attack,

it's actually the heart muscle itself that stops contracting and relaxing. It tends to quiver,

and then you basically die. And so people don't really die because of the artery itself.

It's the heart muscle. Now, it's true that you can have a blocked artery that stops the

blood flow to the heart muscle, but you die from the heart muscle malfunctioning because of

a lack of oxygen. It's called hypoxia or ischemia, which is a lack of blood flow. And as you know,

anytime you have a lack of oxygen to a muscle, it cramps. It stops contracting and relaxing.

For muscle to work, it needs a lot of oxygen, unless you're doing some short sprints,

this high intensity type of exercise where you operate with a different system where you don't

need oxygen. But that's very short-lived, and you can only go so far before you hit a wall.

Now, when someone gets heart attack, sometimes I do this test to measure this enzyme lactate dehydrogenase.

I did a video on this, which is an enzyme involving lactate, which I'll get into in a minute.

But when this enzyme is in higher amounts, it could mean that you just had a heart attack within

24 to 72 hours. But it can also mean other things too, like B12 anemia, as in pernicious anemia.

It could mean that you have AIDS, kidney, the liver, acrititis. It could even indicate that you have

cancer because there's destruction of the tissues. And with this destruction comes hypoxia,

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