Free radicals cause oxidative damage & change DNA structure of the cells in the body. Part of this is due to our daily natural cell functioning; however, quite a bit can come from external toxins.
How to reduce free radicals and cellular oxidation
Avoid smoking and exposure
Reducing exposure to x-rays
Avoid tanning beds or over-exposure to the sun
Wear a protective mask around chemicals & other air pollutants
Reduce grilling of foods
Limit and/or avoid alcohol consumption
It can be difficult to avoid many of these external free radicals, be conscious of avoiding what sources you can and remember the importance of eating a rainbow of antioxidants in your everyday eating habits.