Working with the speculation that "the blood of young people contains substances that might rejuvenate older adults," two teams of scientists discovered that the blood of young mice "reverses aging in old mice"
[In the 1950s,] Dr. McCay and his colleagues performed necropsies and found that the cartilage of the old rats looked more youthful than it would have otherwise. But the scientists could not say how the transformations happened. There was not enough known at the time about how the body rejuvenates itself.
It later became clear that stem cells are essential for keeping tissues vital. When tissues are damaged, stem cells move in and produce new cells to replace the dying ones. As people get older, their stem cells gradually falter.
In the early 2000s, scientists realized that stem cells were not dying off in aging tissues.
There were plenty of stem cells there, recalled Thomas A. Rando, a professor of neurology at Stanford University School of Medicine. They just dont get the right signals.
|Student Grades Not Affected by Social Networking|
|Seven Theories to Understand the Universe|
|Antartic Melting Faster Than Predicted|
|Climate Concerns May Soon be a Thing of the Past|
|“It fails to mention, however, that Neuralink is at least preparing to test its devices on animals, if not already doing so.”|
|How to Avoid Jury Duty|
|On Instagram, Everyone Takes the Exact Same Photos|
|“This incredible inconsistency can make English really hard to master for non-native speakers.”|
|“Sending you changes in your media feed that are calculated to adjust you slightly to the liking of some unseen advertiser.”|
|Japanese Robot Serves Ice Cream From Inside a Vending Machine|
|Review of BenQ's treVolo S Portable Electrostatic Bluetooth Speaker|
|“Lifting the electric motors out of Teslas and putting them in the chassis of other, formerly gas guzzling cars.”|
|“That’s why Colorado School of Mines decided it was time for students to learn how to tap celestial bodies for all they’re worth.”|
|“Rejuvenation is Finally an Industry.”|
|“What can we do to make responsible use of plastic a reality? First: reject the lie.”|
|Why, Typewriters Are Alive and Well, Thank you|
|Go the Fuck to Sleep: A Children's Bedtime Book|