Fitness refers to ability of the body to function with vigor and alertness. Nutrition refers to the nurturing of our body, in our ability to keep it healthy and functioning as it is supposed to do. Our ability to provide the body with all the necessary food, vitamins, and minerals so that we continue to thrive in our daily life processes. But do we know if we are really fit? How do we tell? First, you might want to look at your exercise habits, if there are any. If there aren’t any exercise routines to examine, no fitness. Everyone, no matter what their age, benefits from exercise. It keeps our bodies conditioned, our mental sharpness working at top speed, and thanks to the physical aspect, we get a boost to our cardio health, extra calorie burn, and more oxygen to those cells! 
Do you take in more calories than your body needs? Are you supplementing your vitamins and minerals to make sure you are getting your recommended daily allowances? If you’re not making the most basic of efforts to take care of your nutritional needs, you aren’t a fit individual. You may not look sick, you may not have any noticeable symptoms of ill-health, but you’re not the fit and toned individual you could be.
What about the stress levels in your life? Do work in an environment with high levels of stress? Is your personal life a source of comfort or does it add to your stress levels? Do you engage in some form of stress-relieving activity? Stress is the number on contributor to heart attacks and strokes, since they manage to speed up the affect of the real culprits. Stress is basically an out of control situation for most adults today. We manage to schedule every moment of our free time, and leave ourselves with no time for quiet reflection, or time to deal with life’s unexpected emergencies.
Exercises that demand total body involvement are the best for maintaining and improving your level of fitness most effectively. Running, swimming, jogging, dancing, cycling, and very brisk walking are some of the more popular total body involvement exercises.