What are Free Radicals and Oxidative Stress? A Bal...

There is lots of discussion about reducing oxidative stress, the importance of antioxidants to reduce free radicals. But what does it mean on a biochemical level? And is it really all that simple? Is there some yin and yang in play? Just like for anything else, there is a time and a place for everything, even free radicals have their necessary role in the human body. For example, free radicals play a natural role in  heart...