That weathered, pruny exterior loved by photographers and loathed by nearly everyone else is, along with gray hair, perhaps the most easily recognizab...
The Hallmarks of Aging: Epigenetic Alterations
All cells in your body have the same DNA, yet they express different proteins and do different things. How does that happen? Various alterations in y...
Cheat codes for youthful cells
For much of the 20th century, the prevailing wisdom was that once cells were fully differentiated, their identities were crystallized eternally–...
Out with the old, in with the… old?
Researchers at UNC Chapel Hill had an interesting mission: first, transform scar tissue (like the kind that forms after heart attacks) into ordinary c...