My current status: I'm a 41-year-old female, able-bodied, with no particular physical ailments or deficiencies (had comprehensive blood tests done this year). I don't smoke or drink alcohol, and I eat a low-fat, mostly-vegan diet with an emphasis on unrefined starches. I'm 5' 4" and weigh approximately 125 lbs. I have not had my percentage of body fat measured, but I can definitely pinch more than an inch around my waist. I am not trying to lose or gain weight, just trying to stay fit and healthy.
I've been running and racing about 3-4x a week this year, normally at 11-12 min/mile pace, sometimes faster. I have not been doing any aerobic exercise other than running and brisk walking, but am now adding in stair climbing once a week. I'm also going to be more diligent about doing stretches and crunches, and once I re-establish a firm base, will finally add in weightlifting. I have a specific series of exercises to follow (Bob Greene's Get With The Program!), which work well for me as long as I stick to them.