Name: 電子煙安全：事實解釋(短) (E-cigarette safety: the facts explained (short))
Uploaded: 2021-01-14T07:09:48.000Z
Duration: 2 min 22 s
Description: 【看影片學英語】數萬部 YouTube 影片，搭配英漢字典即點即查，輕鬆掌握單字發音與用法，長久累積看電影不必再看字幕。

程度副詞

Using e-cigarettes does differ from
tobacco in a very clear way which is that

it doesn't involve inhaling tobacco
smoke, and as the constituents of

smoke are the things that kill smokers,
that has to be a good thing.

People die from the tar, the other constituents 
of smoke, but not the nicotine.

So the nicotine isn't the harmful component and
electronic cigarettes allow smokers to get the nicotine

without all the other harmful stuff 
that comes along in cigarette smoke.

The first thing to note when considering 
the safety of e-cigarettes

is that the vast majority of e-cigarette users 
are people who are either still smoking,

and using them to cut down on the amount they smoke,
or have used them to stop smoking.

If we try to put a figure on the relative risk of 
electronic cigarettes compared with smoking,

my view is that it's going to be
well under 5 percent of the risk,

possibly slightly more for
cardiovascular disease

but substantially less for chronic obstructive 
pulmonary disease and lung cancer.

When you look at the concentrations of 
and the nature of the toxins in cigarette smoke,

and then you compare that with e-cigarettes 
you see that really there's no comparison.

Most of the toxins in cigarette smoke 
aren't present at all in e-cigarette vapour

those that are present are in concentrations 
that are a hundred times less or more.

Some people say that the advent of electronic 
cigarettes is renormalising tobacco smoking –

so we see people using these devices, 
and it's making smoking more normal again.

Interestingly, we're just not 
seeing that in the data we have.

All that it does is normalise 
electronic cigarette use.

And if we could normalise electronic cigarette use 
for the nearly 9 million people in the United Kingdom

who are still addicted to tobacco,
that could only be a good thing.

I think it's really important 
that people be reassured

that e-cigarettes, whatever you
might see in the press,

and the evidence is pretty good that they 
can be effective in helping people to stop.