Free radicals are harmful molecules. They bear an odd number of electrons in them. The elements try to obtain stability by taking electrons belonging to other molecules. This process leads to oxidative stress. Oxidative stress in general may be a factor that negatively affects different cells and tissues of the human organism. Knowing the sources of free radicals and their impacts on your body will enable you to take preventive measures on the adverse impacts they may have on your health. Alkaline water benefits are numerous. OSG Alkaline offers the best systems that can improve your hydration level. So, you should buy an OSG alkaline water filter for enhanced health.