Obesity And Biological Aging Across The Life Course: A Geroscience Framework For Metabolic Health
Many of us think of obesity and aging as separate health challenges, but new research suggests they are deeply connected. It appears that having excess body fat can actually speed up how our bodies age at a fundamental, biological level. This concept, known as “Obesity-Accelerated Aging,” suggests that obesity doesn’t just increase the risk for individual diseases, but rather hastens the overall aging process, leading to a quicker decline in our body’s functions and an earlier onset of multiple health problems.
This acceleration happens because obesity triggers several key processes normally associated with aging. For instance, it can disrupt how our cells sense and respond to nutrients, leading to imbalances. It also promotes a state of “chronic low-grade inflammation,” which is a persistent, subtle inflammation throughout the body that can damage tissues over time. Additionally, obesity can lead to “cellular senescence,” where cells stop dividing but don’t die off, instead accumulating and releasing harmful substances. Finally, it can cause “epigenetic drift,” which are changes in how our genes are expressed without altering the underlying DNA sequence, impacting cell function.
Understanding this connection means that managing obesity isn’t just about preventing specific illnesses; it’s a powerful strategy to preserve our overall physical capacity and delay the broader decline associated with aging. Interventions, from lifestyle changes to certain medications, that improve metabolic health can potentially slow down these biological aging processes, helping us maintain better health for longer.
Source: link to paper