Dr Karl

Thirdly...

The plague swept through Europe but did not sweep through Africa.

And it turned out that some people became resistant to the plague and therefore accidentally resistant to AIDS because they both, the plague and AIDS, use the same receptor to get into the body.

And so there are people in Scandinavia who are...

have evolved to be totally resistant to AIDS.

And then thirdly, with regard to living at high altitudes, like in Tibet or the Andes or in Africa, there are three separate mutations we humans have done.

Well, the next one will be, we have no idea.

Wow.

There are.

A good way of saying I don't know.

Yeah.

But we've seen mutations come.

Thank you, Dr. William.

Sorry I had to do it so fast.

He's being shy.

Where did you go?

And also, we're also changing the diseases that we have.

It used to be in the old days that if you had cystic fibrosis, you did not have children.

But now they do and they can pass the gene on.

So we're doing that change to our society as well, which will have good effects and bad effects as well.