Maintain the longest possible streak of days without illness.
One measure I have of my health is how often (or rarely) I fall ill and how rapidly I recover. I honestly cannot remember the last time I suffered flu symptoms. (Yeah, yeah, I should probably be knocking on wood right now were I the slightest bit superstitious.) I do get the occasional cold, but my typical cold is noting my throat feels tight/sore one day, runny / stuffy nose the next, and some coughing for the next couple days to clear my system.
I also do, sadly, get cold sores. True to form, they show up around times I'm ill or starting my cycle, particularly if I haven't been eating as well or haven't been taking a multi-vitamin. (And probably if I'm stressed in combination - basically when my body is burning vitamin/mineral resources.)
In my opinion, a HUGE part of that is my water consumption. When our bodies are properly hydrated, they fight viruses and germs more effectively. Even when I was otherwise eating excessively or poorly, I was drinking lots of water, plenty of milk, and some juice.
So, I do feel I'm already rather healthy.
But there's always room for improvement.
Now, this goal is actually kind of odd in one sense. There isn't really a way to guarantee I won't get sick. I can take plenty of normal precautions - not handling things like phones that have been used by someone sick, washing my hands regularly. But I can't completely avoid the spread of the variety of possible infections much more than I already do.
However, I do believe that as I become more healthy through proper eating habits, eventually improving my sleeping habits (problem area there, but not ready to change certain things yet), and being more aware of others sick around me, that I can minimize my exposure and increase my chances of my body fighting and killing the bad guys without me ever feeling symptoms.
Be able to do normal squats and lunges without complaints from my knees. Ditto for other problem areas that act up when I'm doing strength training.
I'm already seeing some improvement in my knees from working the quadriceps and hamstrings (front and back of thighs). The only time my knees speak up on the bike is when the resistance increases past a certain point and in the first moments of pushing to meet that. So I know I'm on the right track.
To me, being able to do the squats and lunges - and in proper form, a normal set of reps - will be a big sign of how much improvement there is to my fitness.
** If you didn't see what this is about, at the beginning of February I decided that I wanted to figure out 1 long-term goal in Health and 1 in Fitness each week of February, so 4 total long-term goals.
While I know I need to lose weight and I am doing that, my goal has never been "get down to ### pounds". I have no must-reach pants size or waist measurement or expected physical appearance.
My goal at the beginning of this was, quite honestly, to get more fit and healthy and to eat better. Which is okay up to a point, but I decided to ask myself by what I define as being fit enough and healthy enough. I could say I'm already more fit and more healthy and quit now. But obviously I meant more than I've gotten to so far. And these goals are my attempt to better define where I want to be. **