Free Radicals and Antioxidants
Cigarette smoke, with 4,000 chemicals and 43 known carcinogens to its credit, produces free radicals in the tar and gas phases.--Photo credit: http://www.flickr.com/photos/lanier67/237055775/
- Cigarette smoke, with 4,000 chemicals and 43 known carcinogens to its credit, produces free radicals in the tar and gas phases.--Photo credit: http://www.flickr.com/photos/lanier67/237055775/
- Fluorescent lighting, used in large commercial and institutional buildings (and some homes), is known to cause free radical-induced DNA damage.Photo credit: http://www.flickr.com/photos/sbalcomb/133792553/
- Mitochondria produce free radicals in the process of converting oxygen to energy.Photo credit: http://www.flickr.com/photos/biologyflashcards/3439703502/
- Telomeres, cap-like structures that protect DNA as it is copied in the process of cell division, shorten as we age. Photo credit: http://commons.wikimedia.org/wiki/File:Telomere.png
- DNA is vulnerable to the effects of oxidative stress from free radical formation. Photo credit: http://commons.wikimedia.org/wiki/File:Dna-split.png
- Fruits are a rich source of antioxidants, which neutralize free radicals.Photo credit: http://www.flickr.com/photos/moonjazz/2829599312/
- Vegetables supply a bounty of antioxidants, which ward off oxidative stress and subsequent damage to the bodys cells. Photo credit: http://www.flickr.com/photos/97968921@N00/710892962/; http://www.flickr.com/photos/11598028@N00/481907527/
- An old couple lived in the mountains. The man cut wood and the woman wove every day. One day the man found a spring and drank from it and he became a young man. Delighted, he ran home. His wife said a young man needed a young wife so she would go and drink, but they should not both be away so he should wait. He did wait but when she did not come back he went after her. He found a baby by the spring; his wife had drunk too eagerly.
What can we conclude? There is a fountain of youth: it is your mind, your talents, the creativity you bring in your life and the lives of people you love.--Photo credit: http://www.flickr.com/photos/jfreund1/3985143384/
- Or is this the fountain of youth?Photo credit: http://www.flickr.com/photos/bkwdayton/3060130897/
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