How do I get my boyfriend to smoke less or cut down entirely?

My boyfriend smokes and unlike other girls I'm actually fine with it. But, I'm really worried about him and I'd prefer it if he at least smoked less.

I don't actually know how much he smokes but maybe once or twice a week? He doesn't do it in front of me but he admits he does.

How do I get him to smoke less without being a pushover and taking away his freedom? Damn, he can do whatever the fuck he wants. I'm just scared that he'll get sick or bad things will happen.

What do I do?
How do I get my boyfriend to smoke less or cut down entirely?
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