The truth about free radicals We are exposed to free radicals every day via natural elements like the sun, which means they're pretty much unavoidable. Yet, we can exacerbate the levels of them in our bodies by making unhealthy lifestyle choices like consuming toxins and byproducts found in fast foods, caffeine and cigarettes. Basically, "the more toxic your lifestyle is, the more free radicals you're going to be exposed to," says Simpson.
And, since skin is the largest organ of the body, it's the most susceptible to free radical damage. So, in addition to wearing SPF topically, you can (and should) protect your skin internally by increasing your antioxidant consumption through diet and supplements.
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