When you run you need more blood to function your body
<span>Taking the club drug Ecstasy while pregnant can interfere with the baby's motor development after birth, a new study finds. The drug also seems to raise the odds of having a baby boy.</span>
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<em>Antibodies</em><em> </em><em>are</em><em> </em><em>produced</em><em> </em><em>by</em><em> </em><em>lymphocytes</em><em> </em><em>since</em><em> </em><em>it</em><em> </em><em>is</em><em> </em><em>part</em><em> </em><em>of</em><em> </em><em>the</em><em> </em><em>immune</em><em> </em><em>system</em><em> </em>
The muscles surrounding the airways contract
