Wendy Zukerman

So those stomach acids are so toxic to sperm.

In one study, researchers actually looked into how different acids...

would affect sperm, whether it would immobilize or kill human sperm.

And so they mixed semen with stuff that is generally less acidic than the contents of our stomach.

And what they found was that within a minute, the sperm could no longer move.

And within 10 minutes, all the sperm were dead.

So based on that study, the odds of the sperm surviving the stomach were perhaps even less than the odds of this woman not having a vagina.

Here's Neil.

Yeah, it appears she was caught in the act.

All of this must have happened quickly.

It couldn't have just been sitting in the stomach.

Because then sperm would have been dead.

Absolutely.

It has to have happened very fast.

The swallow.

And then, so we know saliva is a nicer pH for sperm.

We also know that seminal fluid is not acidic.

It's actually a little bit basic.

So maybe the two of them acted like a coating to protect the sperm.

On top of that, eating food can lower the acidity in your stomach.