A wrinkly, grey-haired look into aging
While the indications of aging are all around us, in that extra bit of effort it takes to get out of bed in the morning or the thinning hair atop your head, scientists still are trying to understand just how aging occurs.
The body reacts to these triggers in ways that exacerbate problems — no longer signaling cells to divide, for instance. We also run out of tissue stem cells. Communication among cells becomes riddled with errors, a factor associated with cancer.
Rounding out the list are deregulated nutrient sensing, mitochondrial dysfunction and cellular senescence.
The cause for all of this study of our decaying state, as it turns out, is a positive one, in the words of the stud’s coauthor Carlos Lopez-Otin:
“We don’t aspire to immortality, just to the possibility of making life a little better for us all.”
Read more over at Science Now.
Photo: Richard Hartog / Los Angeles Times
Traffic forces the tertiary route to work. At least it’s pleasant.