Is there any "non-nagging" way to encourage someone to be healthier?

When my husband and I got married, we were both overweight, TV junkies. After my second child, I got tired of seeing my reflection every day, and decided to do something about it. I am now a vegan and I exercise every day, encouraging my children to do the same. My husband still comes home everyday and sits on the... show more When my husband and I got married, we were both overweight, TV junkies. After my second child, I got tired of seeing my reflection every day, and decided to do something about it. I am now a vegan and I exercise every day, encouraging my children to do the same. My husband still comes home everyday and sits on the couch watching TV all night. I'm really worried about him. He's still very young, but he smokes a pack a day, deep fries everything, uses salt like oxygen, and avoids exercise like a plague. I have tried asking him to walk with me and other things like that, but nothing I have tried works. Any suggestions?
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