aging
Study: Telomeres Don’t Shorten with Age in Longest-Lived Bats
Study: Telomeres Don’t Shorten with Age in Longest-Lived Bats
Diana Kwon | Feb 8, 2018
Researchers find that while bats in the Myotis genus don’t produce telomerase, the enzyme that lengthens telomeres, they possess 21 telomere maintenance–related genes.
Can Young Stem Cells Make Older People Stronger?
Can Young Stem Cells Make Older People Stronger?
Shawna Williams | Dec 11, 2017
Small trials using younger donors and elderly recipients hint that mesenchymal stem cell transfers might reduce frailty. 
Dolly’s Cloning Likely Didn’t Cause Premature Aging
Dolly’s Cloning Likely Didn’t Cause Premature Aging
Katarina Zimmer | Nov 24, 2017
A new analysis of Dolly’s skeleton suggests the cloned sheep’s arthritis did not lead to her death. 
Telomere Length and Childhood Stress Don’t Always Correlate
Telomere Length and Childhood Stress Don’t Always Correlate
Katarina Zimmer | Nov 17, 2017
Shorter telomere length is widely considered a manifestation of stress in young children, but the results of a new study find it’s more complicated than that.  
Genetic Mutation in Amish Linked to Longer Life
Genetic Mutation in Amish Linked to Longer Life
Katarina Zimmer | Nov 16, 2017
Mutations in both copies of SERPINE1 can result in blood clotting disorders, but carriers might enjoy longer lifespan and health benefits. 
Image of the Day: Mitochondria, Live and in Color
Image of the Day: Mitochondria, Live and in Color
The Scientist Staff | Sep 27, 2017
Mitochondria age differently depending upon whether they’re located in the liver, heart, or kidney, scientists find in flies and mice.
A Potential Remedy for the Aging Brain
A Potential Remedy for the Aging Brain
Aggie Mika | Aug 8, 2017
In mice, injected fragments of a naturally occurring protein boost memory in young and old animals and improve cognition and mobility in a model of neurodegenerative disease. 
Company Sells a “Biological Age” Kit
Company Sells a “Biological Age” Kit
Diana Kwon | Aug 2, 2017
While the epigenetic clock is a useful tool for research and has solid scientific backing, scientists say the product’s use to consumers is limited.
Stem Cells in the Hypothalamus Slow Aging in Mice
Stem Cells in the Hypothalamus Slow Aging in Mice
Ashley P. Taylor | Jul 26, 2017
Once implanted into animals’ brains, neural stem cells that secrete microRNA-containing vesicles seem to contribute to an anti-aging effect.
Evidence for Human Lifespan Limit Contested
Evidence for Human Lifespan Limit Contested
Diana Kwon | Jun 28, 2017
Five groups of scientists criticize a widely publicized Nature paper from 2016 suggesting that humans can only live up to 115 years.