Ankur Desai

Absolutely.

Look, football is in the heart of Brazilians.

It feels as though long distance running is very similar for Kenyans.

How is it that they're able to produce just so many incredible long distance runners over the years?

Right, brace yourselves because we're about to get spooky.

Have you ever walked into a building and immediately got an uneasy feeling?

As if you're not alone, like you're being watched.

Do you believe in ghosts?

Well, if you do, bad news.

Because research just released by a group of Canadian scientists proves that often those feelings can be attributed to infrasound.

Now, a sound that we humans can't hear, but can feel on a vibrational level, which triggers other psychological and physiological effects.

Parapsychologist Kieran O'Keefe explained more to my colleague Rebecca Kesby.

First of all, I'm genuinely excited by the research because it supports an area of study that I've been looking at now for over 25 years.

This idea that low frequency sound, and that is infrasound, it's below 20 hertz, but it can affect us physiologically.

So it can affect our bodies in such a way that we may think

It's some sort of paranormal experience, especially if you put that in a context.

The research idea is not new.

It's been around for about 25 years.

But the lovely thing about this recent experimental work in Canada is a controlled way of showing that not only our mood can be affected, that we can actually get more irritable and even kind of increase sadness as a result of presence of infrasound, but it also increases our levels of cortisol, which is the stress hormone.

Yes, exactly.