oxidative stress

Medical Research

Microplastics and Aging: What the First Meta-Analysis Actually Shows

A pooled look at 33 studies finds microplastic exposure consistently nudges oxidative-stress markers upward. The signal is real — but so are the caveats.

Wellness Technology

Epigenetic Clocks and Spit Tests: The New Toolkit for Tracking How You're Really Aging

At-home longevity tests are graduating from gimmick to research-grade. Here's what second-generation DNA clocks and saliva-based oxidative stress assays actually measure — and what they still can't tell you.