Our bodies are such intricate machines that we aren't even close to fully understanding them.

But even absolutely minuscule amounts of some toxins like cyanide can grind that machine to an indefinite hull.

So grab yourself a hazmat suit?

Because from snake venom to killer beans, we're about to find out what the deadliest substance on this planet really is.

You're listening. You're listening to be amazed.

Have you ever heard the phrase, an apple a day keeps the doctor away?

Sure you have, but it turns out 30 apples a day will have quite the opposite effect.

That's because apple seeds and many other organic foods actually contain traces of cyanide,

a chemical compound which at the right or wrong dose can be extremely deadly.

It only takes about 250 milligrams or a quarter of a paperclip's worth and a 180-pound human for it to be fatal.

Yikes!

Cyanide can enter the body as either a gas called hydrogen cyanide or as crystallized salts.

Once inside, it stops your cells from using oxygen.

This creates a massive problem, especially for your heart, kidneys, and brain, as they require

the most oxygen to keep taking on.

And cyanide acts fast.

If swallowed, you'd be a goner in a few minutes, but if inhaled, it could be as little as a few seconds

before the lack of oxygen causes your whole body to shut down.

Sheesh.

Fortunately, you'd have to gobble about 150 apple seeds to actually consume enough of the stuff to prove fatal.

And unless you enjoy hanging around inside fumigated houses, you won't be in any danger of inhaling it either.

Even so, I'll be thinking twice about a second slice of Grandma's apple pie next time I see her.

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