Could key to eternal youth be blood from umbilical cord?

The blood from human umbilical cords may be the key ingredient for a'fountain of youth' drug, a new study suggests. Researchers say a protein found in cord blood can reverse the effects of age-associated mental declines. The protein affects the hippocampus, the part of the brain that converts experiences into long-term memories and is essential for helping you remember information. If so, this would add to the growing number of benefits that have been discovered using cord blood. Researchers at Stanford University School of Medicine, in California, have identified a protein called tissue inhibitor of metalloproteases 2, or TIMP2, which is very common in human cord blood.