Chemical Basis of Life

New Study Indicates DNA Can Be Altered Through Diet and Excercise
http://www.naturalnews.com/024133_Chi_genes_health.html

This artical that I came accross tells of studies conducted that point to how our bodies DNA does not control how our bodies perform, health and weight wiese.
I always thought that my body size and health was preset for me by my DNA. That I would be unable to control how often I got sick, how long I would be sick for and even my own body weight. Now I know that by eating healthy and living a more active life doesnt just help me be more healthy but that it can change my DNA to be more proactive against virus's and to have cancer causing ones even shut down.
Iv recently studied DNA, what it is, what it does and how its a  major factor for the basis of life and of our own lives. I never would have thought that just by doing something so basic such as eating healthy and exercis could have such an effect and evan a change on something so complex as DNA.