Sentence examples for how harmful from inspiring English sources

The jury's still out at the FDA on just how harmful (or not) e-cigarettes are.

"How harmful can that be?

How harmful will the economic consequences be?

People dismiss how harmful this culture is".

How harmful can their words be?

How harmful can such pigeonholing be?

"Sometimes people realize how harmful it is to their health.

There's no doubt how harmful this clatter is.

"We don't really know how harmful e-cigarettes are.

Headey, B. & Veenhoven, R. in How Harmful is Hapiness?

So how harmful is it and is it illegal?