Joanie, you might find this link informative... (more, inside)
I'm not affiliated with it at all, except I went to one of their lectures last year, and found it very helpful. You've probably heard of them (Drs. Roizen and Oz).
It's pretty much common sense, but it gives you practical ideas for following the advice your doctor has already probably told your DH.
These 3 things are the ideas he told us to take away from the lecture, even if we forgot everything else:
High blood pressure (uncontrolled) is the thing that will effect your health the most. More than cholesterol level, and a couple other things I can't remember!
A glass of wine a day is ok, even encouraged, as long as there is no other reason he should not have it. And if it's not red wine, that's ok - just have a few red grapes a day.
*Cooked* tomatoes do a lot for your health - I think it was 10 servings of tomato products per week, along with olive or canola oil.
Aspirin - check with your doctor, but they advise taking one 325-milligram tablet of aspirin each day for overall good health.
http://www.realage.com/research_library/12ways.aspx