aging
Birds With Older Fathers Have Shorter Telomeres, Lifespans
Birds With Older Fathers Have Shorter Telomeres, Lifespans
Anna Azvolinsky | Mar 14, 2018
The findings contradict what has been observed in humans.  
Image of the Day: Aging Brain Cells
Image of the Day: Aging Brain Cells
The Scientist Staff, The Scientist Staff | Mar 13, 2018
Scientists identified a gene involved in the age-related deterioration of mouse neural stem cells.
Could Rapamycin Help Humans Live Longer?
Could Rapamycin Help Humans Live Longer?
Anne N. Connor | Mar 1, 2018
From extending lifespan to bolstering the immune system, the drug’s effects are only just beginning to be understood.
Rapping About Rapamycin
Rapping About Rapamycin
The Scientist Staff | Feb 28, 2018
Relive the Lasker Award speech from University of Basel biologist Michael Hall.
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.