DH is an ex smoker, now vapes. Mid 50s. Always been slim but has started to get a pot belly in the last couple of years. Has been asthmatic since a child. Saw the asthma nurse recently and she says he needs a test for possible COPD. Awaiting appointment date. I’m also worried about diabetes. He is tired all the time. Asleep on the sofa by 8pm most nights. Drinks but not to excess. Is there anything I can do to help - diet etc? I do most of the cooking and food shopping (my choice) so I can adapt that if need be. He likes takeaway but will probably have to move away from that. He is open to making lifestyle changes (stopping vaping etc), whether or not he can see them through is another issue!