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.
Answer: Every 16 days about 72% of you is replaced. About 72% of the human body is H2O (liquid water). Every ~16 days nearly 100% of the water is exchanged in a healthy body. Heavy elements like carbon, sodium and potassium take occupancy far longer perhaps 8 months - 11 months. For example the calcium and phosphorus in bones are replaced in a dynamic crystal growth / dissolving process that will ultimately replace all bones in your body. Other larger organs' atomic replacement can be estimated: 1  The lining in stomach and intestine every 4 days. 2  The Gums are replaced every 2 weeks. 3  The Skin replaced every 4 weeks. 4  The Liver replaced every 6 weeks. 5  The Lining of blood vessels replaced every 6 months. 6  The Heart replaced every 6 months.