While the body’s internal battle between antioxidants and free radicals certainly gets less press coverage than the Kanye vs 50 Cent feud, the war is vital for healthy living (although admittedly, it’s not yet clear how it influences the sale of Cristal!)
In the red corner are free radicals, or molecules with unpaired electrons. Like Renee Zellweger in Jerry Maguire, this little lady is an unstable molecule just looking for someone special—or, in this case, another electron—to complete her. So rather than signing up for an online dating service like all the other lonely 30-somethings, this molecule barges in on other molecules, altering their chemical structure and causing damage to otherwise healthy cells. These free radicals, which in our bodies most frequently appear in the form of oxygen, are a natural by-product of various cell activities, but can also be created through exposure to tobacco smoke, chemicals, UV radiation and other environmental factors.