Free radicals are actually formed naturally as a part of our body's metabolic processes. However, free radicals can also be influenced by environmental factors, including smoking habits, use of pesticides in food, pollution and radiation. Free radicals are unstable molecules which react easily with essential molecules of our body, including DNA, lipids and proteins. Free radicals are molecules that have one electron too much or too little so unstable. Free radicals try to steal or give electrons to another molecule possesses, thereby changing their chemical structure.
When free radicals attack the molecule, the molecule is initially neutral radicals eventually be changed as well. This process causes a chain reaction that can cause cell destruction.
Free radicals are organic molecules that are responsible for premature aging, tissue damage, and the likelihood of some diseases such as cancer and heart disease.
We all know that in order to fight the free radicals that enter the body the necessary antioxidants. Antioxidants have the ability to neutralize free radicals without becoming a free radical itself. When antioxidants neutralize the free radicals by accepting or donating electrons, they are not going to turn into free radicals and remain stable. In other words, antioxidants are chemicals that are offering their own electrons to the free radicals, thus preventing cell damage.
But as soon as antioxidants neutralize free radicals, the ability antiosidan terlebut become inactive. Therefore we need to continue to supply our body with antioxidants every day. Examples of well-known antioxidants are vitamins C, E and beta-carotene. Not only vitamins, there are many other types of antioxidants such as lycopene found in tomatoes or watermelon.
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