The Study was conducted by the Sloan Center on Aging & Work at Boston College between November 2007 and September 2008 (Time 1: November 2007 to March 2008; Time 2: May 2008 to September 2008). The Center collaborated with 9 U.S. workplaces (12 departments) on this study.
Heart muscle cells can take approximately 20 years to completely renew themselves. Never Cells that cannot repair â Itâs unfortunate for many, but old age can take itâs toll on the eyes and brain.
Answers. Best Answer: Your plasma (the watery part of the blood that makes up most of its volume) should be replaced within a week. Normally the body can replace a pint of donated plasma in 24 hours, so I'm extrapolating from there since you lost three pints. It can take your body at least 8 weeks to replace all the red blood cells (erythrocytes) that you lost. These erythrocytes are what carry the iron in your blood. They also carry the oxygen. Less oxygen and less iron in your blood can make you look pale.