Microplastics accelerate cellular aging by driving oxidative stress and senescence

Emerging research suggests microplastics and nanoplastics may accelerate biological aging through oxidative stress, chronic low-grade inflammation ("inflammaging"), and cellular senescence — where cells stop dividing but linger, releasing signals that damage nearby tissue. Lab and animal studies show microplastic exposure can shorten telomeres and impair mitochondrial function, mechanisms that overlap with known drivers of aging. Because plastics don't biodegrade once inside the body, decades of chronic exposure could act as a cumulative stressor that compounds with age. Open question: is this a real contributor to human aging, or too early to extrapolate from animal data