Yeah it's odd when you look back at your own work. Some filmmakers don't look back at their work at all. I look at my work a lot actually. I feel like I learned something while looking at stuff I've done in terms of what I'm going to do in the future mistakes I've made and things at work or what have you.
Since the reduction of risk factors is the scientific basis for primary prevention the World Health Organization promotes the development of an integrated strategy for prevention of several diseases rather than focusing on individual ones.