Mike drops out first due to his fear of heights.

This reportedly had a positive effect on their fear of heights.

"It turns out they have a fear of heights," she said.

The course was designed to overcome their fear of heights.

It is being used to help people overcome a fear of heights.

Still, those with a fear of heights most definitely need not apply.

I'm not a sweet old engineer with a fear of heights.

She has no fear of heights and neither, it seems, does he.

Clearly, though, it is suffering from a greater fear of heights.

And for sure, I did not get any relief from my fear of heights.