Although this virus can occasionally kill someone you wouldn't expect (young and healthy), it is primarily preying on the elderly and those with certain existing co-morbidities.....and a good portion of those disease states are in part determined by behavior (smoking, poor diet, no exercise, etc.).
I hope that one silver lining that we as a society will come to terms with as we fight this virus is our public health in general.....we are getting a wake up call. Despite any and all precautions we have taken and will take, some people were going to succumb to this virus regardless. However, I do think it is logical to assume that we can take better care of ourselves and decrease the likelihood of having a virus like this exacerbate our existing issues or conditions.
Specifically, as a population, we need to eat better (limit fast food/processed food), exercise, and go to the doctor regularly as well as screen for possible disease modalities. One positive I see is that people are getting outdoors and walking, running, and riding bikes....more than usual at least in my area. I don't have any hard science behind it, but I do believe a portion of these bad outcomes could be somewhat prevented in the future with more focus on our personal health.