Microbiome and Human Aging: Probi…Cellular Senescence.

This was a review of existing research rather than a new experiment. The authors found that your gut microbiome influences skin aging by affecting cellular senescence — a process where cells stop dividing but stay metabolically active, releasing inflammatory compounds that damage skin. The connection happens through the gut-skin axis, but the researchers were honest: we don't yet fully understand how this works or which specific prebiotics actually help.