It is believed that it takes about 60 seconds for a blood cell to make... one round in our body.
Regarding the components of blood, it consists of four components - red blood cells, white blood cells, plasma and platelets - each of which performs a different function.
window.AdmanQueue.push(function(){Adman.adunit({id:17672,h:'https://x.grxchange.gr',inline:true});});
Via: Newsbeast.gr