document.write('<link rel="stylesheet" href="https://clicktotweet.com/embed/embed.css" type="text/css" media="all">');
document.write('<div class="tweet-box ctt-box-design-2">');
document.write('  <a href="https://ctt.ec/d1e7c">');
document.write('    <p class="ctt-font-original">Women have an extra X chromosome which some scientists believe is a significant biological factor for women’s longer life expectancy. This extra X chromosome helps women regulate their immune system, giving women an advantage to better fight infections. </p>');
document.write('	  <div class="click-to-tweet"><i></i><span class="cta-pr">Click To Tweet</span></div>');
document.write('	</a>');
document.write('</div>');