cientists have found that human beings age at a molecular level in two accelerated bursts – first at the age of 44, and then again at 60.
In a study published in the journal Nature Aging, scientists at Stanford University and Nanyang Technological University in Singapore followed 108 participants over several years to observe aging changes in their molecules — RNA, proteins and participants’ microbiomes.
The scientists found that human aging does not happen in a gradual, linear way. Rather, the majority of the molecules they studied showed accelerated, non-linear changes at the ages of 44 and 60.
For example, the ability to metabolize caffeine notably decreases – first around the age of 40 and once more around 60. Components involved in metabolizing alcohol also diminish, particularly around the age of 40, Michael Snyder, chair of the department of genetics at Stanford and an author of the study, told CNN, referring to the two waves of aging.
Disease risks also rise faster, particularly after the age of 60. The study found that people age 60 or older are more susceptible to cardiovascular disorders, kidney issues and type 2 diabetes.
Read more at CNN.com
ADVERTISING
What Are Your Thoughts?
