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shared by wasin kusakabe on 14 Apr 12 - No Cached

- wasin kusakabe on 14 Apr 12
  
  Physical activities can change the DNA sequence which can be passed on to later generations. However this has only been tested on frogs and may not apply to mammals like us.
  
  <div class="cArrow"> </div><div class="cContentInner">Physical activities can change the DNA sequence which can be passed on to later generations. However this has only been tested on frogs and may not apply to mammals like us.</div>
  
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athletic frogs tended to have faster-changing genomes.
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Stretches of DNA accumulate changes over time
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Physically fit frogs have faster-changing genomes
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During exercise, the circulatory system provides blood and oxygen to the tissues that are needed most
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When physical activity has stopped, the rush of blood and oxygen when circulation is restored to those tissues produces a burst of free radicals that can cause wear and tear on DNA, eventually causing genetic changes that -- if they affect the DNA of cells that make eggs or sperm -- can be passed to future generations.
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